#253C49
Closest named color: Dark Blue Grey (#1F3B4D). oklch(34.3% 0.037 234.1), rgb(37, 60, 73).
Aa
White text reads best on this color (11.53:1).
About this color
#253C49 is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.037 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.011 away. White text reads best on it, at 11.53:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.82:1 |
| White text | 11.53:1 |
Values
| HEX | #253C49 |
| RGB | rgb(37, 60, 73) |
| HSL | hsl(202, 33%, 22%) |
| OKLCH | oklch(34.3% 0.037 234.1) |
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 #253C49 | 11.53:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #253C49 | 1.82:1 | Fails | Lc 7.4 | Not readable |
| #253C49 text on white | 11.53:1 | AAA | Lc 96.5 | Preferred for body text |
| #253C49 text on black | 1.82:1 | 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
#D0DBE2
oklch(88.5% 0.015 235.4)
-
Step 300
300
#B0C4D0
oklch(80.9% 0.028 234.1)
-
Step 400
400
#86A6B8
oklch(70.7% 0.044 232.8)
-
Step 500
500
#6790A7
oklch(63.2% 0.057 233.4)
-
Step 600
600
#4E7A92
oklch(55.7% 0.061 233.3)
-
Step 700
700
#3F667C
oklch(49% 0.057 234.3)
-
Step 800
800
#345365
oklch(42.6% 0.047 234.9)
-
Step 900
900 (this color)
#253C49
oklch(34.3% 0.037 234.1)
-
Step 950
950
#1B2830
oklch(26.9% 0.023 235.8)
#253C49 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) | #363B4A | 0.025 |
| Deuteranopia (no green cones) | #313749 | 0.022 |
| Tritanopia (no blue cones) | #163F40 | 0.027 |
| Achromatopsia (no color) | #393939 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253C49
#253C49
oklch(34.3% 0.037 234.1)
- #483426
#483426
oklch(34.4% 0.037 56.1)
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 #253C49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.011
- Onyx #343A40 ΔE 0.024
- Midnight Green #073B4C ΔE 0.027
- Gunmetal #293241 ΔE 0.032
- Charcoal #264653 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.041
Use #253C49 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.