#255A84
Closest named color: Light Navy Blue (#2E5A88). oklch(45.2% 0.089 245.6), rgb(37, 90, 132).
Aa
White text reads best on this color (7.30:1).
About this color
#255A84 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.089 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.011 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #255A84 |
| RGB | rgb(37, 90, 132) |
| HSL | hsl(207, 56%, 33%) |
| OKLCH | oklch(45.2% 0.089 245.6) |
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 #255A84 | 7.30:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #255A84 | 2.87:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #255A84 text on white | 7.30:1 | AAA | Lc 85.1 | Fine for body text |
| #255A84 text on black | 2.87:1 | Fails | Lc -16.9 | Dividers and decoration only |
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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A6C5E1
oklch(81% 0.052 245.8)
-
Step 400
400
#74A6D1
oklch(70.6% 0.083 245.3)
-
Step 500
500
#4E8FC6
oklch(63.1% 0.107 246.1)
-
Step 600
600
#2E79B2
oklch(55.7% 0.115 245.2)
-
Step 700
700
#206599
oklch(49% 0.107 245.6)
-
Step 800
800 (this color)
#255A84
oklch(45.2% 0.089 245.6)
-
Step 900
900
#1E4564
oklch(37.8% 0.069 245.1)
-
Step 950
950
#13283A
oklch(26.9% 0.043 246.2)
#255A84 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) | #475B86 | 0.037 |
| Deuteranopia (no green cones) | #3A5283 | 0.029 |
| Tritanopia (no blue cones) | #006469 | 0.064 |
| Achromatopsia (no color) | #565656 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255A84
#255A84
oklch(45.2% 0.089 245.6)
- #774A16
#774A16
oklch(45.1% 0.089 65.2)
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 #255A84, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.011
- Dusk Blue #26538D ΔE 0.028
- Deep Sea Blue #015482 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.034
- Light Navy #155084 ΔE 0.035
- Denim #3B638C ΔE 0.038
- Peacock Blue #016795 ΔE 0.042
Use #255A84 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.