#253355
Closest named color: Prussian Blue (#1D3557). oklch(32.6% 0.064 266), rgb(37, 51, 85).
Aa
White text reads best on this color (12.47:1).
About this color
#253355 is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.064 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.011 away. White text reads best on it, at 12.47:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.68:1 |
| White text | 12.47:1 |
Values
| HEX | #253355 |
| RGB | rgb(37, 51, 85) |
| HSL | hsl(223, 39%, 24%) |
| OKLCH | oklch(32.6% 0.064 266) |
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 #253355 | 12.47:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #253355 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #253355 text on white | 12.47:1 | AAA | Lc 98.3 | Preferred for body text |
| #253355 text on black | 1.68:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C1E0
oklch(81% 0.047 264.9)
-
Step 400
400
#8AA0D1
oklch(70.7% 0.076 265.7)
-
Step 500
500
#6E88C5
oklch(63.2% 0.097 266)
-
Step 600
600
#5671B1
oklch(55.6% 0.105 265.8)
-
Step 700
700
#465E99
oklch(49.1% 0.099 266.1)
-
Step 800
800
#3A4D7C
oklch(42.7% 0.082 266.3)
-
Step 900
900 (this color)
#253355
oklch(32.6% 0.064 266)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#253355 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) | #263656 | 0.010 |
| Deuteranopia (no green cones) | #203254 | 0.008 |
| Tritanopia (no blue cones) | #0E3A40 | 0.056 |
| Achromatopsia (no color) | #343434 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253355
#253355
oklch(32.6% 0.064 266)
- #433204
#433204
oklch(32.8% 0.064 86.5)
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 #253355, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.011
- Dark Blue Grey #1F3B4D ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.035
- Gunmetal #293241 ΔE 0.036
- Midnight Green #073B4C ΔE 0.042
- Marine #042E60 ΔE 0.043
- Marine Blue #01386A ΔE 0.045
- Onyx #343A40 ΔE 0.054
Use #253355 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.