#253965
Closest named color: Prussian Blue (#1D3557). oklch(35.2% 0.081 264.2), rgb(37, 57, 101).
Aa
White text reads best on this color (11.34:1).
About this color
#253965 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.081 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.029 away. White text reads best on it, at 11.34:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.85:1 |
| White text | 11.34:1 |
Values
| HEX | #253965 |
| RGB | rgb(37, 57, 101) |
| HSL | hsl(221, 46%, 27%) |
| OKLCH | oklch(35.2% 0.081 264.2) |
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 #253965 | 11.34:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #253965 | 1.85:1 | Fails | Lc 7.9 | Not readable |
| #253965 text on white | 11.34:1 | AAA | Lc 96.0 | Preferred for body text |
| #253965 text on black | 1.85:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9F0
oklch(88.4% 0.034 265.2)
-
Step 300
300
#ADC1E9
oklch(80.9% 0.061 264.2)
-
Step 400
400
#82A0DE
oklch(70.7% 0.097 264.2)
-
Step 500
500
#6387D5
oklch(63.1% 0.125 264.4)
-
Step 600
600
#4A6FC2
oklch(55.5% 0.136 264.3)
-
Step 700
700
#3C5DA7
oklch(49.2% 0.125 264.2)
-
Step 800
800
#314C88
oklch(42.7% 0.105 264.2)
-
Step 900
900 (this color)
#253965
oklch(35.2% 0.081 264.2)
-
Step 950
950
#1A2640
oklch(27.2% 0.051 264.4)
#253965 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) | #263D67 | 0.013 |
| Deuteranopia (no green cones) | #1D3764 | 0.012 |
| Tritanopia (no blue cones) | #00434A | 0.070 |
| Achromatopsia (no color) | #3A3A3A | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253965
#253965
oklch(35.2% 0.081 264.2)
- #4C3700
#4C3700
oklch(35.1% 0.072 84.7)
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 #253965, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.029
- Marine Blue #01386A ΔE 0.030
- Twilight Blue #0A437A ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.050
- Marine #042E60 ΔE 0.050
- Midnight Green #073B4C ΔE 0.055
- Charcoal #264653 ΔE 0.059
Use #253965 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.