#285A79
Closest named color: Light Navy Blue (#2E5A88). oklch(44.8% 0.074 238.7), rgb(40, 90, 121).
Aa
White text reads best on this color (7.42:1).
About this color
#285A79 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.074 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.026 away. White text reads best on it, at 7.42:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #285A79 |
| RGB | rgb(40, 90, 121) |
| HSL | hsl(203, 50%, 32%) |
| OKLCH | oklch(44.8% 0.074 238.7) |
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 #285A79 | 7.42:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #285A79 | 2.82:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #285A79 text on white | 7.42:1 | AAA | Lc 85.6 | Fine for body text |
| #285A79 text on black | 2.82:1 | Fails | Lc -16.4 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CBDCE8
oklch(88.5% 0.025 238.4)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#78A7C7
oklch(70.7% 0.069 238.8)
-
Step 500
500
#5391B9
oklch(63.1% 0.088 238.6)
-
Step 600
600
#357BA5
oklch(55.7% 0.096 238.3)
-
Step 700
700
#27678E
oklch(49.1% 0.09 239.2)
-
Step 800
800 (this color)
#285A79
oklch(44.8% 0.074 238.7)
-
Step 900
900
#21465D
oklch(37.8% 0.058 238.2)
-
Step 950
950
#142936
oklch(27% 0.036 237.4)
#285A79 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) | #4C5A7A | 0.042 |
| Deuteranopia (no green cones) | #415278 | 0.034 |
| Tritanopia (no blue cones) | #006265 | 0.052 |
| Achromatopsia (no color) | #555555 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285A79
#285A79
oklch(44.8% 0.074 238.7)
- #734A28
#734A28
oklch(44.8% 0.074 58.9)
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 #285A79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.026
- YInMn Blue #415A77 ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.035
- Petrol #005F6A ΔE 0.039
- Light Navy #155084 ΔE 0.043
- Dusk Blue #26538D ΔE 0.044
- Denim #3B638C ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
Use #285A79 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.