#0000FF color codes
- HEX
- #0000FF
- HEX8
- #0000FFFF
- HEX8 (Android)
- #FF0000FF
- RGB
- rgb(0, 0, 255)
- RGB (%)
- 0%, 0%, 100%
- HSL
- hsl(240, 100%, 50%)
- HSV / HSB
- hsv(240, 100%, 100%)
- CMYK
- cmyk(100%, 100%, 0%, 0%)
- OKLCH
- oklch(0.452 0.3132 264.05)
- OKLCH (%)
- oklch(45.2% 0.3132 264.05)
- Decimal
- 255
What color is #0000FF?
#0000FF sits at 45% lightness and 0.3132 chroma in OKLCH, hue 264.05°. Its nearest named color is Blue (an exact match).
Shades and tints of #0000FF
Tints
Shades
Tones
#0000FF color harmonies
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Square
Monochromatic
Using #0000FF in CSS
.text { color: #0000FF; }
.background { background-color: #0000FF; }
.border { border: 2px solid #0000FF; }
/* Modern, perceptually uniform */
.text { color: oklch(0.452 0.3132 264.05); }
/* #0000FF at 50% transparency */
.overlay { background-color: #0000FF80; }Is #0000FF accessible?
#0000FF on white text scores 8.59:1; on black text it scores 2.44:1. White text passes WCAG AAA on #0000FF. Recommended text color on a #0000FF background: white.
A 2.44:1 vs black
A 8.59:1 vs white
- AA normal ≥ 4.5 Pass
- AA large ≥ 3 Pass
- AAA normal ≥ 7 Pass
- AAA large ≥ 4.5 Pass
Recommended text color: white
CSS
contrast-color() contrast-color(#0000FF) → white APCA Lc experimental 90.7 Lc · body text — preferred (white text)
WCAG 2.1 AA/AAA is the compliance floor; APCA is an optional readability metric.
Related colors
Nearest featured color: Blue #0000FF. See more in the blue family on the colors hub.
Frequently asked questions
- What color is #0000FF?
- #0000FF is Blue. In RGB it is rgb(0, 0, 255), and in HSL hsl(240, 100%, 50%).
- What is #0000FF in RGB?
- #0000FF converts to rgb(0, 0, 255) — red 0, green 0, blue 255.
- What text color is readable on #0000FF?
- White text — it has the higher contrast ratio (8.59:1) against #0000FF. White text passes WCAG AAA on #0000FF.