#266EE8
Closest named color: Cerulean Blue (#056EEE). oklch(56.6% 0.198 260.5), rgb(38, 110, 232).
Aa
White text reads best on this color (4.68:1).
About this color
#266EE8 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.198 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.014 away. White text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.47:1 |
| White text | 4.68:1 |
Values
| HEX | #266EE8 |
| RGB | rgb(38, 110, 232) |
| HSL | hsl(218, 81%, 53%) |
| OKLCH | oklch(56.6% 0.198 260.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #266EE8 | 4.68:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #266EE8 | 4.47:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #266EE8 text on white | 4.68:1 | AA | Lc 71.9 | Content text, not long reading |
| #266EE8 text on black | 4.47:1 | AA large text | Lc -29.7 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#A0C2FB
oklch(81% 0.089 260.6)
-
Step 400
400
#6BA0F9
oklch(70.8% 0.143 260.3)
-
Step 500
500
#4385F6
oklch(63.2% 0.182 260.4)
-
Step 600
600 (this color)
#266EE8
oklch(56.6% 0.198 260.5)
-
Step 700
700
#1558C7
oklch(49.1% 0.185 260.5)
-
Step 800
800
#1549A1
oklch(42.8% 0.153 260.5)
-
Step 900
900
#183E7F
oklch(37.6% 0.118 260.4)
-
Step 950
950
#0F254B
oklch(27% 0.076 260.5)
#266EE8 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #067DEC | 0.037 |
| Deuteranopia (no green cones) | #006CE6 | 0.015 |
| Tritanopia (no blue cones) | #008CA0 | 0.152 |
| Achromatopsia (no color) | #747474 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #266EE8
#266EE8
oklch(56.6% 0.198 260.5)
- #996D00
#996D00
oklch(56.5% 0.117 80.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #266EE8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.014
- Royal Blue #4169E1 ΔE 0.023
- Neon Blue #4361EE ΔE 0.036
- Bright Blue #0165FC ΔE 0.041
- Clear Blue #247AFD ΔE 0.042
- Azul #1D5DEC ΔE 0.043
- Warm Blue #4B57DB ΔE 0.060
- Windows Blue #3778BF ΔE 0.073
Use #266EE8 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.