#253974
Closest named color: Twilight Blue (#0A437A). oklch(36.2% 0.104 267), rgb(37, 57, 116).
Aa
White text reads best on this color (10.95:1).
About this color
#253974 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.104 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.032 away. White text reads best on it, at 10.95:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.91:1 |
| White text | 10.95:1 |
Values
| HEX | #253974 |
| RGB | rgb(37, 57, 116) |
| HSL | hsl(225, 52%, 30%) |
| OKLCH | oklch(36.2% 0.104 267) |
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 #253974 | 10.95:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #253974 | 1.91:1 | Fails | Lc 8.8 | Not readable |
| #253974 text on white | 10.95:1 | AAA | Lc 95.1 | Preferred for body text |
| #253974 text on black | 1.91:1 | Fails | Lc -7.5 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AAC0F4
oklch(80.9% 0.078 266.8)
-
Step 400
400
#7D9DEF
oklch(70.6% 0.126 267)
-
Step 500
500
#5E82E9
oklch(63% 0.16 267.2)
-
Step 600
600
#4669D8
oklch(55.6% 0.175 267.3)
-
Step 700
700
#3857BB
oklch(49.1% 0.162 267.2)
-
Step 800
800
#2E4897
oklch(42.7% 0.133 266.9)
-
Step 900
900 (this color)
#253974
oklch(36.2% 0.104 267)
-
Step 950
950
#182447
oklch(27% 0.067 267.5)
#253974 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) | #1A4076 | 0.021 |
| Deuteranopia (no green cones) | #073973 | 0.025 |
| Tritanopia (no blue cones) | #004751 | 0.087 |
| Achromatopsia (no color) | #3C3C3C | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253974
#253974
oklch(36.2% 0.104 267)
- #4E3B00
#4E3B00
oklch(36.3% 0.074 88.2)
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 #253974, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.032
- Marine Blue #01386A ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.052
- Cobalt #1E488F ΔE 0.058
- Marine #042E60 ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.067
- Light Navy #155084 ΔE 0.068
Use #253974 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.