#285580
Closest named color: Light Navy Blue (#2E5A88). oklch(43.9% 0.087 249.5), rgb(40, 85, 128).
Aa
White text reads best on this color (7.77:1).
About this color
#285580 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.087 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.020 away. White text reads best on it, at 7.77:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #285580 |
| RGB | rgb(40, 85, 128) |
| HSL | hsl(209, 52%, 33%) |
| OKLCH | oklch(43.9% 0.087 249.5) |
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 #285580 | 7.77:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #285580 | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #285580 text on white | 7.77:1 | AAA | Lc 86.8 | Fine for body text |
| #285580 text on black | 2.70:1 | Fails | Lc -15.3 | 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
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A8C4E1
oklch(80.9% 0.051 249.4)
-
Step 400
400
#79A5D2
oklch(70.7% 0.082 249.6)
-
Step 500
500
#558EC6
oklch(63.1% 0.104 249.4)
-
Step 600
600
#3977B2
oklch(55.6% 0.112 249.5)
-
Step 700
700
#2A6499
oklch(49.1% 0.104 249)
-
Step 800
800 (this color)
#285580
oklch(43.9% 0.087 249.5)
-
Step 900
900
#234464
oklch(37.7% 0.068 249.4)
-
Step 950
950
#15283B
oklch(27.1% 0.044 249.7)
#285580 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) | #425782 | 0.031 |
| Deuteranopia (no green cones) | #364F7F | 0.021 |
| Tritanopia (no blue cones) | #005F64 | 0.067 |
| Achromatopsia (no color) | #525252 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285580
#285580
oklch(43.9% 0.087 249.5)
- #714811
#714811
oklch(43.9% 0.087 68.7)
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 #285580, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.020
- Deep Sea Blue #015482 ΔE 0.022
- Dusk Blue #26538D ΔE 0.024
- Light Navy #155084 ΔE 0.024
- YInMn Blue #415A77 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.040
- Dusk #4E5481 ΔE 0.046
- Denim #3B638C ΔE 0.050
Use #285580 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.