#263E5D
Closest named color: Dark Grey Blue (#29465B). oklch(36% 0.062 255.3), rgb(38, 62, 93).
Aa
White text reads best on this color (10.88:1).
About this color
#263E5D is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.062 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.028 away. White text reads best on it, at 10.88:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.92:1 |
| White text | 10.88:1 |
Values
| HEX | #263E5D |
| RGB | rgb(38, 62, 93) |
| HSL | hsl(214, 42%, 26%) |
| OKLCH | oklch(36% 0.062 255.3) |
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 #263E5D | 10.88:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #263E5D | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #263E5D text on white | 10.88:1 | AAA | Lc 95.1 | Preferred for body text |
| #263E5D text on black | 1.92:1 | Fails | Lc -7.5 | 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
#ADC3DF
oklch(81% 0.046 254.5)
-
Step 400
400
#82A3CF
oklch(70.7% 0.074 255.8)
-
Step 500
500
#628CC2
oklch(63.2% 0.094 255.1)
-
Step 600
600
#4875AF
oklch(55.6% 0.104 255.4)
-
Step 700
700
#396296
oklch(49.1% 0.096 255.1)
-
Step 800
800
#30507A
oklch(42.7% 0.08 255.7)
-
Step 900
900 (this color)
#263E5D
oklch(36% 0.062 255.3)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#263E5D 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) | #31405E | 0.017 |
| Deuteranopia (no green cones) | #2A3A5C | 0.013 |
| Tritanopia (no blue cones) | #044549 | 0.055 |
| Achromatopsia (no color) | #3D3D3D | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263E5D
#263E5D
oklch(36% 0.062 255.3)
- #503813
#503813
oklch(36% 0.062 75)
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 #263E5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.033
- Charcoal #264653 ΔE 0.036
- Midnight Green #073B4C ΔE 0.043
- Marine Blue #01386A ΔE 0.045
- Onyx #343A40 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.051
Use #263E5D 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.