#255B90
Closest named color: Light Navy Blue (#2E5A88). oklch(46.2% 0.104 250.7), rgb(37, 91, 144).
Aa
White text reads best on this color (7.05:1).
About this color
#255B90 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.104 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.014 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #255B90 |
| RGB | rgb(37, 91, 144) |
| HSL | hsl(210, 59%, 35%) |
| OKLCH | oklch(46.2% 0.104 250.7) |
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 #255B90 | 7.05:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #255B90 | 2.97:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #255B90 text on white | 7.05:1 | AAA | Lc 84.1 | Fine for body text |
| #255B90 text on black | 2.97:1 | Fails | Lc -17.8 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#A9C4E1
oklch(81% 0.051 250.3)
-
Step 400
400
#7BA5D1
oklch(70.8% 0.079 250.1)
-
Step 500
500
#588DC5
oklch(63% 0.102 251)
-
Step 600
600
#3C77B2
oklch(55.7% 0.111 250.5)
-
Step 700
700 (this color)
#255B90
oklch(46.2% 0.104 250.7)
-
Step 800
800
#27517C
oklch(42.6% 0.086 251)
-
Step 900
900
#244464
oklch(37.8% 0.067 250)
-
Step 950
950
#16283A
oklch(27.1% 0.041 249.6)
#255B90 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) | #435E92 | 0.033 |
| Deuteranopia (no green cones) | #33548F | 0.022 |
| Tritanopia (no blue cones) | #00686E | 0.080 |
| Achromatopsia (no color) | #595959 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255B90
#255B90
oklch(46.2% 0.104 250.7)
- #7B4D00
#7B4D00
oklch(46.2% 0.1 70.5)
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 #255B90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.014
- Denim Blue #3B5B92 ΔE 0.022
- Dusk Blue #26538D ΔE 0.023
- Peacock Blue #016795 ΔE 0.035
- Denim #3B638C ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.039
- Light Navy #155084 ΔE 0.040
Use #255B90 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.