#253A46
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.6% 0.034 234.2), rgb(37, 58, 70).
Aa
White text reads best on this color (11.84:1).
About this color
#253A46 is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.034 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.013 away. White text reads best on it, at 11.84:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.77:1 |
| White text | 11.84:1 |
Values
| HEX | #253A46 |
| RGB | rgb(37, 58, 70) |
| HSL | hsl(202, 31%, 21%) |
| OKLCH | oklch(33.6% 0.034 234.2) |
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 #253A46 | 11.84:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #253A46 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #253A46 text on white | 11.84:1 | AAA | Lc 97.1 | Preferred for body text |
| #253A46 text on black | 1.77:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B1C4CF
oklch(80.9% 0.026 233.1)
-
Step 400
400
#88A5B7
oklch(70.6% 0.042 235.4)
-
Step 500
500
#6A8FA5
oklch(63.1% 0.053 234.8)
-
Step 600
600
#517990
oklch(55.6% 0.057 234.4)
-
Step 700
700
#42667A
oklch(49.1% 0.052 233.6)
-
Step 800
800
#375364
oklch(42.7% 0.044 235.9)
-
Step 900
900 (this color)
#253A46
oklch(33.6% 0.034 234.2)
-
Step 950
950
#1C282F
oklch(26.9% 0.021 234.2)
#253A46 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) | #343947 | 0.022 |
| Deuteranopia (no green cones) | #303646 | 0.019 |
| Tritanopia (no blue cones) | #183D3E | 0.025 |
| Achromatopsia (no color) | #373737 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253A46
#253A46
oklch(33.6% 0.034 234.2)
- #453226
#453226
oklch(33.5% 0.034 53.5)
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 #253A46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.013
- Onyx #343A40 ΔE 0.023
- Gunmetal #293241 ΔE 0.026
- Midnight Green #073B4C ΔE 0.026
- Prussian Blue #1D3557 ΔE 0.040
- Charcoal #264653 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.045
Use #253A46 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.