#28516E
Closest named color: Deep Sea Blue (#015482). oklch(41.9% 0.067 241.6), rgb(40, 81, 110).
Aa
White text reads best on this color (8.42:1).
About this color
#28516E is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.067 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.036 away. White text reads best on it, at 8.42:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.49:1 |
| White text | 8.42:1 |
Values
| HEX | #28516E |
| RGB | rgb(40, 81, 110) |
| HSL | hsl(205, 47%, 29%) |
| OKLCH | oklch(41.9% 0.067 241.6) |
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 #28516E | 8.42:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #28516E | 2.49:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #28516E text on white | 8.42:1 | AAA | Lc 88.9 | Fine for body text |
| #28516E text on black | 2.49:1 | Fails | Lc -13.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4D8
oklch(80.8% 0.039 242.2)
-
Step 400
400
#7EA6C5
oklch(70.7% 0.063 242)
-
Step 500
500
#5C90B6
oklch(63.2% 0.08 241.3)
-
Step 600
600
#4179A2
oklch(55.6% 0.087 242.3)
-
Step 700
700
#32668A
oklch(49.1% 0.08 241.2)
-
Step 800
800 (this color)
#28516E
oklch(41.9% 0.067 241.6)
-
Step 900
900
#27455B
oklch(37.7% 0.052 241.8)
-
Step 950
950
#172835
oklch(26.8% 0.033 242.4)
#28516E 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) | #44516F | 0.034 |
| Deuteranopia (no green cones) | #3B4A6D | 0.028 |
| Tritanopia (no blue cones) | #00585B | 0.051 |
| Achromatopsia (no color) | #4D4D4D | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28516E
#28516E
oklch(41.9% 0.067 241.6)
- #674424
#674424
oklch(41.9% 0.067 61.7)
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 #28516E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.036
- Light Navy #155084 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.041
- YInMn Blue #415A77 ΔE 0.044
- Deep Teal #00555A ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.048
- Petrol #005F6A ΔE 0.049
- Dusk Blue #26538D ΔE 0.051
Use #28516E 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.