#263A41
Closest named color: Onyx (#343A40). oklch(33.4% 0.028 221.8), rgb(38, 58, 65).
Aa
White text reads best on this color (11.90:1).
About this color
#263A41 is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.020 away. White text reads best on it, at 11.90:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.76:1 |
| White text | 11.90:1 |
Values
| HEX | #263A41 |
| RGB | rgb(38, 58, 65) |
| HSL | hsl(196, 26%, 20%) |
| OKLCH | oklch(33.4% 0.028 221.8) |
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 #263A41 | 11.90:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #263A41 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #263A41 text on white | 11.90:1 | AAA | Lc 97.3 | Preferred for body text |
| #263A41 text on black | 1.76:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBDF
oklch(88.5% 0.012 223.5)
-
Step 300
300
#B3C4CA
oklch(80.9% 0.02 220.9)
-
Step 400
400
#8AA6B0
oklch(70.7% 0.034 221.5)
-
Step 500
500
#6D909C
oklch(63.1% 0.043 220.9)
-
Step 600
600
#547A87
oklch(55.6% 0.047 221.3)
-
Step 700
700
#446773
oklch(49.2% 0.044 221.5)
-
Step 800
800
#38545D
oklch(42.7% 0.037 220)
-
Step 900
900 (this color)
#263A41
oklch(33.4% 0.028 221.8)
-
Step 950
950
#1D292D
oklch(27.2% 0.018 220.3)
#263A41 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) | #363941 | 0.024 |
| Deuteranopia (no green cones) | #323641 | 0.021 |
| Tritanopia (no blue cones) | #1C3C3C | 0.018 |
| Achromatopsia (no color) | #373737 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263A41
#263A41
oklch(33.4% 0.028 221.8)
- #44322B
#44322B
oklch(33.5% 0.029 42.2)
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 #263A41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.021
- Gunmetal #293241 ΔE 0.027
- Midnight Green #073B4C ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.042
- Charcoal #264653 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.048
Use #263A41 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.