#253347
Closest named color: Gunmetal (#293241). oklch(31.8% 0.041 257.3), rgb(37, 51, 71).
Aa
White text reads best on this color (12.78:1).
About this color
#253347 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.041 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.011 away. White text reads best on it, at 12.78:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.78:1 |
Values
| HEX | #253347 |
| RGB | rgb(37, 51, 71) |
| HSL | hsl(215, 31%, 21%) |
| OKLCH | oklch(31.8% 0.041 257.3) |
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 #253347 | 12.78:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #253347 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #253347 text on white | 12.78:1 | AAA | Lc 98.8 | Preferred for body text |
| #253347 text on black | 1.64:1 | 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 950.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#ADC2E0
oklch(80.8% 0.048 257.3)
-
Step 400
400
#82A3D1
oklch(70.8% 0.077 256.8)
-
Step 500
500
#638BC5
oklch(63.2% 0.099 257.6)
-
Step 600
600
#4974B1
oklch(55.6% 0.107 257.2)
-
Step 700
700
#3A6198
oklch(49% 0.099 257.2)
-
Step 800
800
#314F7C
oklch(42.6% 0.083 258.3)
-
Step 900
900
#2B4263
oklch(37.6% 0.064 257.4)
-
Step 950
950 (this color)
#253347
oklch(31.8% 0.041 257.3)
#253347 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) | #2C3448 | 0.012 |
| Deuteranopia (no green cones) | #283147 | 0.008 |
| Tritanopia (no blue cones) | #18373A | 0.035 |
| Achromatopsia (no color) | #323232 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253347
#253347
oklch(31.8% 0.041 257.3)
- #3E301A
#3E301A
oklch(31.9% 0.04 77.8)
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 #253347, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.011
- Space Cadet #2B2D42 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.026
- Prussian Blue #1D3557 ΔE 0.029
- Midnight Green #073B4C ΔE 0.034
- Onyx #343A40 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.049
- Marine #042E60 ΔE 0.060
Use #253347 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.