#263A55
Closest named color: Dark Blue Grey (#1F3B4D). oklch(34.5% 0.054 256.2), rgb(38, 58, 85).
Aa
White text reads best on this color (11.54:1).
About this color
#263A55 is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.054 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.018 away. White text reads best on it, at 11.54:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.81:1 |
| White text | 11.54:1 |
Values
| HEX | #263A55 |
| RGB | rgb(38, 58, 85) |
| HSL | hsl(214, 38%, 24%) |
| OKLCH | oklch(34.5% 0.054 256.2) |
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 #263A55 | 11.54:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #263A55 | 1.81:1 | Fails | Lc 7.4 | Not readable |
| #263A55 text on white | 11.54:1 | AAA | Lc 96.5 | Preferred for body text |
| #263A55 text on black | 1.81:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE8
oklch(88.5% 0.022 256.7)
-
Step 300
300
#B0C2DB
oklch(80.8% 0.041 256.6)
-
Step 400
400
#86A3C9
oklch(70.7% 0.065 255.3)
-
Step 500
500
#688BBB
oklch(63% 0.083 256.4)
-
Step 600
600
#4F75A8
oklch(55.6% 0.091 256.1)
-
Step 700
700
#406290
oklch(49.1% 0.084 256.3)
-
Step 800
800
#355075
oklch(42.7% 0.07 256.5)
-
Step 900
900 (this color)
#263A55
oklch(34.5% 0.054 256.2)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#263A55 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) | #2F3C56 | 0.015 |
| Deuteranopia (no green cones) | #2A3754 | 0.010 |
| Tritanopia (no blue cones) | #0F4043 | 0.049 |
| Achromatopsia (no color) | #393939 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263A55
#263A55
oklch(34.5% 0.054 256.2)
- #493516
#493516
oklch(34.4% 0.054 76.2)
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 #263A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.018
- Prussian Blue #1D3557 ΔE 0.022
- Midnight Green #073B4C ΔE 0.034
- Gunmetal #293241 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.039
- Charcoal #264653 ΔE 0.041
- Onyx #343A40 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.047
Use #263A55 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.