#254155
Closest named color: Charcoal (#264653). oklch(36.2% 0.049 241), rgb(37, 65, 85).
Aa
White text reads best on this color (10.68:1).
About this color
#254155 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.049 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.018 away. White text reads best on it, at 10.68:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #254155 |
| RGB | rgb(37, 65, 85) |
| HSL | hsl(205, 39%, 24%) |
| OKLCH | oklch(36.2% 0.049 241) |
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 #254155 | 10.68:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #254155 | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #254155 text on white | 10.68:1 | AAA | Lc 94.7 | Preferred for body text |
| #254155 text on black | 1.96:1 | Fails | Lc -7.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ACC4D6
oklch(80.8% 0.036 240.4)
-
Step 400
400
#80A6C2
oklch(70.7% 0.058 240.6)
-
Step 500
500
#5F8FB3
oklch(63% 0.075 241.8)
-
Step 600
600
#44799E
oklch(55.5% 0.081 240.8)
-
Step 700
700
#366687
oklch(49.1% 0.075 240.6)
-
Step 800
800
#2D536E
oklch(42.6% 0.063 241.2)
-
Step 900
900 (this color)
#254155
oklch(36.2% 0.049 241)
-
Step 950
950
#182834
oklch(26.8% 0.031 241.7)
#254155 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) | #384156 | 0.026 |
| Deuteranopia (no green cones) | #323C55 | 0.022 |
| Tritanopia (no blue cones) | #0A4648 | 0.039 |
| Achromatopsia (no color) | #3E3E3E | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254155
#254155
oklch(36.2% 0.049 241)
- #503822
#503822
oklch(36.2% 0.048 62.8)
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 #254155, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.018
- Dark Grey Blue #29465B ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.024
- Midnight Green #073B4C ΔE 0.037
- Onyx #343A40 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.044
- Dark Teal #014D4E ΔE 0.049
Use #254155 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.