#255089
Closest named color: Dusk Blue (#26538D). oklch(43.1% 0.106 256.4), rgb(37, 80, 137).
Aa
White text reads best on this color (8.11:1).
About this color
#255089 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.106 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.010 away. White text reads best on it, at 8.11:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #255089 |
| RGB | rgb(37, 80, 137) |
| HSL | hsl(214, 57%, 34%) |
| OKLCH | oklch(43.1% 0.106 256.4) |
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 #255089 | 8.11:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #255089 | 2.58:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #255089 text on white | 8.11:1 | AAA | Lc 87.8 | Fine for body text |
| #255089 text on black | 2.58:1 | Fails | Lc -14.3 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A7C3E9
oklch(80.9% 0.062 256.1)
-
Step 400
400
#78A3DE
oklch(70.8% 0.099 256.5)
-
Step 500
500
#548BD5
oklch(63.2% 0.127 256.3)
-
Step 600
600
#3873C2
oklch(55.6% 0.138 256.6)
-
Step 700
700
#2A60A8
oklch(49.1% 0.129 256.7)
-
Step 800
800 (this color)
#255089
oklch(43.1% 0.106 256.4)
-
Step 900
900
#22426D
oklch(37.7% 0.083 256.4)
-
Step 950
950
#152740
oklch(27.1% 0.053 256.9)
#255089 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) | #35558B | 0.024 |
| Deuteranopia (no green cones) | #254B88 | 0.015 |
| Tritanopia (no blue cones) | #005D66 | 0.082 |
| Achromatopsia (no color) | #505050 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255089
#255089
oklch(43.1% 0.106 256.4)
- #6C4800
#6C4800
oklch(43.1% 0.091 76.2)
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 #255089, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.010
- Light Navy #155084 ΔE 0.015
- Deep Sea Blue #015482 ΔE 0.026
- Cobalt #1E488F ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.051
- Twilight #4E518B ΔE 0.051
Use #255089 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.