#263D5C
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.6% 0.062 256.2), rgb(38, 61, 92).
Aa
White text reads best on this color (11.02:1).
About this color
#263D5C is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.062 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.029 away. White text reads best on it, at 11.02:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.90:1 |
| White text | 11.02:1 |
Values
| HEX | #263D5C |
| RGB | rgb(38, 61, 92) |
| HSL | hsl(214, 42%, 25%) |
| OKLCH | oklch(35.6% 0.062 256.2) |
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 #263D5C | 11.02:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #263D5C | 1.90:1 | Fails | Lc 8.5 | Not readable |
| #263D5C text on white | 11.02:1 | AAA | Lc 95.4 | Preferred for body text |
| #263D5C text on black | 1.90:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#AEC2DF
oklch(80.8% 0.047 257.6)
-
Step 400
400
#83A3CF
oklch(70.8% 0.074 256.4)
-
Step 500
500
#638BC2
oklch(63% 0.095 256.5)
-
Step 600
600
#4A75AE
oklch(55.7% 0.101 255.9)
-
Step 700
700
#3B6296
oklch(49.2% 0.095 256.1)
-
Step 800
800
#31507A
oklch(42.8% 0.079 256.4)
-
Step 900
900 (this color)
#263D5C
oklch(35.6% 0.062 256.2)
-
Step 950
950
#1A2739
oklch(27% 0.038 256.7)
#263D5C 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) | #313F5D | 0.017 |
| Deuteranopia (no green cones) | #2A3A5B | 0.010 |
| Tritanopia (no blue cones) | #054448 | 0.055 |
| Achromatopsia (no color) | #3C3C3C | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263D5C
#263D5C
oklch(35.6% 0.062 256.2)
- #4E3712
#4E3712
oklch(35.5% 0.061 76.1)
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 #263D5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal #264653 ΔE 0.037
- Midnight Green #073B4C ΔE 0.042
- Marine Blue #01386A ΔE 0.044
- Onyx #343A40 ΔE 0.050
- Gunmetal #293241 ΔE 0.052
Use #263D5C 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.