#255073
Closest named color: Deep Sea Blue (#015482). oklch(41.8% 0.076 245.6), rgb(37, 80, 115).
Aa
White text reads best on this color (8.48:1).
About this color
#255073 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.076 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.029 away. White text reads best on it, at 8.48:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #255073 |
| RGB | rgb(37, 80, 115) |
| HSL | hsl(207, 51%, 30%) |
| OKLCH | oklch(41.8% 0.076 245.6) |
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 #255073 | 8.48:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #255073 | 2.47:1 | Fails | Lc 15.0 | Not readable |
| #255073 text on white | 8.48:1 | AAA | Lc 89.0 | Fine for body text |
| #255073 text on black | 2.47:1 | Fails | Lc -13.2 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7CA6CA
oklch(70.8% 0.07 244.9)
-
Step 500
500
#598FBD
oklch(63.1% 0.09 245.6)
-
Step 600
600
#3D78A9
oklch(55.5% 0.098 245.9)
-
Step 700
700
#2F6591
oklch(49.1% 0.091 245.8)
-
Step 800
800 (this color)
#255073
oklch(41.8% 0.076 245.6)
-
Step 900
900
#25455F
oklch(37.8% 0.059 244.8)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#255073 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) | #415175 | 0.033 |
| Deuteranopia (no green cones) | #364972 | 0.026 |
| Tritanopia (no blue cones) | #00585C | 0.057 |
| Achromatopsia (no color) | #4D4D4D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255073
#255073
oklch(41.8% 0.076 245.6)
- #68431A
#68431A
oklch(41.7% 0.075 65.6)
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 #255073, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy #155084 ΔE 0.030
- Dusk Blue #26538D ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.045
- YInMn Blue #415A77 ΔE 0.047
- Twilight Blue #0A437A ΔE 0.050
- Deep Teal #00555A ΔE 0.055
Use #255073 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.