#28546B
Closest named color: Petrol (#005F6A). oklch(42.5% 0.062 233.6), rgb(40, 84, 107).
Aa
White text reads best on this color (8.16:1).
About this color
#28546B is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.062 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.038 away. White text reads best on it, at 8.16:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.57:1 |
| White text | 8.16:1 |
Values
| HEX | #28546B |
| RGB | rgb(40, 84, 107) |
| HSL | hsl(201, 46%, 29%) |
| OKLCH | oklch(42.5% 0.062 233.6) |
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 #28546B | 8.16:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #28546B | 2.57:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #28546B text on white | 8.16:1 | AAA | Lc 88.1 | Fine for body text |
| #28546B text on black | 2.57:1 | Fails | Lc -14.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ABC5D5
oklch(80.9% 0.036 234.9)
-
Step 400
400
#7DA7BF
oklch(70.6% 0.057 233.7)
-
Step 500
500
#5A91AF
oklch(63% 0.074 233.5)
-
Step 600
600
#3E7B9B
oklch(55.6% 0.08 233.7)
-
Step 700
700
#306884
oklch(49.2% 0.074 232.8)
-
Step 800
800 (this color)
#28546B
oklch(42.5% 0.062 233.6)
-
Step 900
900
#264657
oklch(37.7% 0.048 233.2)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#28546B 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) | #49536C | 0.040 |
| Deuteranopia (no green cones) | #404C6B | 0.035 |
| Tritanopia (no blue cones) | #005A5C | 0.043 |
| Achromatopsia (no color) | #4F4F4F | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28546B
#28546B
oklch(42.5% 0.062 233.6)
- #69452D
#69452D
oklch(42.5% 0.062 54)
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 #28546B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.038
- Deep Teal #00555A ΔE 0.040
- YInMn Blue #415A77 ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.046
- Light Navy #155084 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.049
Use #28546B 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.