#266388
Closest named color: Denim (#3B638C). oklch(47.8% 0.086 239), rgb(38, 99, 136).
Aa
White text reads best on this color (6.51:1).
About this color
#266388 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.086 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.021 away. White text reads best on it, at 6.51:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.22:1 |
| White text | 6.51:1 |
Values
| HEX | #266388 |
| RGB | rgb(38, 99, 136) |
| HSL | hsl(203, 56%, 34%) |
| OKLCH | oklch(47.8% 0.086 239) |
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 #266388 | 6.51:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #266388 | 3.22:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #266388 text on white | 6.51:1 | AA | Lc 82.0 | Fine for body text |
| #266388 text on black | 3.22:1 | AA large text | Lc -19.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#A9C5D9
oklch(80.9% 0.041 239.1)
-
Step 400
400
#7AA7C6
oklch(70.7% 0.066 239)
-
Step 500
500
#5691B8
oklch(63.2% 0.085 239)
-
Step 600
600
#397AA4
oklch(55.6% 0.093 239.8)
-
Step 700
700 (this color)
#266388
oklch(47.8% 0.086 239)
-
Step 800
800
#255472
oklch(42.7% 0.071 239.5)
-
Step 900
900
#23465C
oklch(37.8% 0.055 238.2)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#266388 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) | #52638A | 0.047 |
| Deuteranopia (no green cones) | #445987 | 0.039 |
| Tritanopia (no blue cones) | #006C70 | 0.057 |
| Achromatopsia (no color) | #5E5E5E | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #266388
#266388
oklch(47.8% 0.086 239)
- #805026
#805026
oklch(47.7% 0.086 59.5)
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 #266388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.021
- Peacock Blue #016795 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.038
- Dusky Blue #475F94 ΔE 0.042
- Ocean Blue #03719C ΔE 0.046
- Sea Blue #047495 ΔE 0.050
Use #266388 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.