#28568B
Closest named color: Dusk Blue (#26538D). oklch(44.8% 0.101 253.7), rgb(40, 86, 139).
Aa
White text reads best on this color (7.51:1).
About this color
#28568B is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.101 and its hue 254°. 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 7.51:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #28568B |
| RGB | rgb(40, 86, 139) |
| HSL | hsl(212, 55%, 35%) |
| OKLCH | oklch(44.8% 0.101 253.7) |
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 #28568B | 7.51:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #28568B | 2.79:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #28568B text on white | 7.51:1 | AAA | Lc 85.9 | Fine for body text |
| #28568B text on black | 2.79:1 | Fails | Lc -16.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEF
oklch(88.6% 0.033 254)
-
Step 300
300
#A7C3E7
oklch(80.9% 0.06 254.8)
-
Step 400
400
#77A4DA
oklch(70.8% 0.093 253.5)
-
Step 500
500
#528CD1
oklch(63.1% 0.121 253.8)
-
Step 600
600
#3575BE
oklch(55.7% 0.131 253.7)
-
Step 700
700
#2762A4
oklch(49.2% 0.122 253.6)
-
Step 800
800 (this color)
#28568B
oklch(44.8% 0.101 253.7)
-
Step 900
900
#21436A
oklch(37.7% 0.078 253.3)
-
Step 950
950
#14273E
oklch(26.9% 0.05 254.1)
#28568B 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) | #3E5A8D | 0.028 |
| Deuteranopia (no green cones) | #30508A | 0.018 |
| Tritanopia (no blue cones) | #00626A | 0.077 |
| Achromatopsia (no color) | #545454 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28568B
#28568B
oklch(44.8% 0.101 253.7)
- #744B00
#744B00
oklch(44.8% 0.095 73.4)
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 #28568B, 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 Blue #2E5A88 ΔE 0.016
- Light Navy #155084 ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.028
- Cobalt #1E488F ΔE 0.045
- Denim #3B638C ΔE 0.046
- Twilight #4E518B ΔE 0.046
Use #28568B 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.