#266B9E
Closest named color: Ocean Blue (#03719C). oklch(50.9% 0.106 244.7), rgb(38, 107, 158).
Aa
White text reads best on this color (5.70:1).
About this color
#266B9E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.106 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.021 away. White text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.67:1 |
| White text | 5.70:1 |
Values
| HEX | #266B9E |
| RGB | rgb(38, 107, 158) |
| HSL | hsl(206, 61%, 38%) |
| OKLCH | oklch(50.9% 0.106 244.7) |
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 #266B9E | 5.70:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #266B9E | 3.67:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #266B9E text on white | 5.70:1 | AA | Lc 78.2 | Fine for body text |
| #266B9E text on black | 3.67:1 | AA large text | Lc -23.6 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A6C5E0
oklch(81% 0.051 244.8)
-
Step 400
400
#74A6D1
oklch(70.6% 0.083 245.3)
-
Step 500
500
#4E90C4
oklch(63.2% 0.104 244.3)
-
Step 600
600
#2E79B1
oklch(55.6% 0.114 244.7)
-
Step 700
700 (this color)
#266B9E
oklch(50.9% 0.106 244.7)
-
Step 800
800
#1D537B
oklch(42.7% 0.087 244.5)
-
Step 900
900
#1E4563
oklch(37.7% 0.068 244.3)
-
Step 950
950
#13293A
oklch(27.2% 0.042 243.6)
#266B9E 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) | #546DA0 | 0.047 |
| Deuteranopia (no green cones) | #43619D | 0.035 |
| Tritanopia (no blue cones) | #00777D | 0.074 |
| Achromatopsia (no color) | #666666 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #266B9E
#266B9E
oklch(50.9% 0.106 244.7)
- #8F5715
#8F5715
oklch(50.9% 0.106 64.3)
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 #266B9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.021
- Peacock Blue #016795 ΔE 0.025
- Muted Blue #3B719F ΔE 0.026
- Denim #3B638C ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.034
- Mid Blue #276AB3 ΔE 0.035
- Sea Blue #047495 ΔE 0.035
- French Blue #436BAD ΔE 0.037
Use #266B9E 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.