#255C84
Closest named color: Light Navy Blue (#2E5A88). oklch(45.7% 0.087 243.5), rgb(37, 92, 132).
Aa
White text reads best on this color (7.13:1).
About this color
#255C84 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.087 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.012 away. White text reads best on it, at 7.13:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.94:1 |
| White text | 7.13:1 |
Values
| HEX | #255C84 |
| RGB | rgb(37, 92, 132) |
| HSL | hsl(205, 56%, 33%) |
| OKLCH | oklch(45.7% 0.087 243.5) |
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 #255C84 | 7.13:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #255C84 | 2.94:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #255C84 text on white | 7.13:1 | AAA | Lc 84.5 | Fine for body text |
| #255C84 text on black | 2.94:1 | Fails | Lc -17.5 | 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
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A5C5E0
oklch(80.9% 0.052 243.9)
-
Step 400
400
#73A7D0
oklch(70.7% 0.082 243)
-
Step 500
500
#4C90C4
oklch(63.1% 0.105 243.7)
-
Step 600
600
#2C79B0
oklch(55.5% 0.113 243.8)
-
Step 700
700
#1D6697
oklch(49.1% 0.105 243.2)
-
Step 800
800 (this color)
#255C84
oklch(45.7% 0.087 243.5)
-
Step 900
900
#1D4563
oklch(37.7% 0.068 243.8)
-
Step 950
950
#12293A
oklch(27.1% 0.043 242.6)
#255C84 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) | #4A5D86 | 0.041 |
| Deuteranopia (no green cones) | #3D5483 | 0.031 |
| Tritanopia (no blue cones) | #00666A | 0.063 |
| Achromatopsia (no color) | #585858 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255C84
#255C84
oklch(45.7% 0.087 243.5)
- #794B1C
#794B1C
oklch(45.7% 0.087 62.7)
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 #255C84, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.012
- YInMn Blue #415A77 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.033
- Denim #3B638C ΔE 0.034
- Dusk Blue #26538D ΔE 0.034
- Peacock Blue #016795 ΔE 0.038
- Light Navy #155084 ΔE 0.040
Use #255C84 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.