#263C58
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.2% 0.057 255), rgb(38, 60, 88).
Aa
White text reads best on this color (11.23:1).
About this color
#263C58 is a dark, muted blue. In OKLCH its lightness is 35%, its chroma 0.057 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.022 away. White text reads best on it, at 11.23:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.86:1 |
| White text | 11.23:1 |
Values
| HEX | #263C58 |
| RGB | rgb(38, 60, 88) |
| HSL | hsl(214, 40%, 25%) |
| OKLCH | oklch(35.2% 0.057 255) |
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 #263C58 | 11.23:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #263C58 | 1.86:1 | Fails | Lc 8.0 | Not readable |
| #263C58 text on white | 11.23:1 | AAA | Lc 95.8 | Preferred for body text |
| #263C58 text on black | 1.86:1 | 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
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CFDAE9
oklch(88.5% 0.024 256.1)
-
Step 300
300
#AFC3DC
oklch(81% 0.042 254.1)
-
Step 400
400
#84A3CB
oklch(70.7% 0.068 255)
-
Step 500
500
#658CBD
oklch(63.1% 0.086 254.6)
-
Step 600
600
#4C75AA
oklch(55.6% 0.095 255.3)
-
Step 700
700
#3D6292
oklch(49.1% 0.088 255.5)
-
Step 800
800
#335076
oklch(42.6% 0.073 255.6)
-
Step 900
900 (this color)
#263C58
oklch(35.2% 0.057 255)
-
Step 950
950
#1A2738
oklch(26.9% 0.037 255.4)
#263C58 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) | #313E59 | 0.017 |
| Deuteranopia (no green cones) | #2B3957 | 0.011 |
| Tritanopia (no blue cones) | #0B4246 | 0.049 |
| Achromatopsia (no color) | #3B3B3B | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263C58
#263C58
oklch(35.2% 0.057 255)
- #4C3616
#4C3616
oklch(35.1% 0.056 74.3)
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 #263C58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.033
- Charcoal #264653 ΔE 0.037
- Midnight Green #073B4C ΔE 0.037
- Onyx #343A40 ΔE 0.044
- Gunmetal #293241 ΔE 0.045
- Marine Blue #01386A ΔE 0.047
Use #263C58 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.