#28416B
Closest named color: Twilight Blue (#0A437A). oklch(37.7% 0.079 260.2), rgb(40, 65, 107).
Aa
White text reads best on this color (10.20:1).
About this color
#28416B is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.079 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.032 away. White text reads best on it, at 10.20:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.05:1 |
| White text | 10.20:1 |
Values
| HEX | #28416B |
| RGB | rgb(40, 65, 107) |
| HSL | hsl(218, 46%, 29%) |
| OKLCH | oklch(37.7% 0.079 260.2) |
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 #28416B | 10.20:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #28416B | 2.05:1 | Fails | Lc 10.4 | Not readable |
| #28416B text on white | 10.20:1 | AAA | Lc 93.5 | Preferred for body text |
| #28416B text on black | 2.05:1 | Fails | Lc -9.0 | 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 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ABC2E7
oklch(80.9% 0.058 259.9)
-
Step 400
400
#7EA1DC
oklch(70.6% 0.095 260.6)
-
Step 500
500
#5D89D2
oklch(63.1% 0.121 260.1)
-
Step 600
600
#4472BF
oklch(55.7% 0.13 260.1)
-
Step 700
700
#355FA5
oklch(49.1% 0.122 260)
-
Step 800
800
#2D4E86
oklch(42.8% 0.101 260.3)
-
Step 900
900 (this color)
#28416B
oklch(37.7% 0.079 260.2)
-
Step 950
950
#18263F
oklch(27% 0.051 261.4)
#28416B 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) | #2F446D | 0.014 |
| Deuteranopia (no green cones) | #263E6A | 0.010 |
| Tritanopia (no blue cones) | #004A51 | 0.067 |
| Achromatopsia (no color) | #414141 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28416B
#28416B
oklch(37.7% 0.079 260.2)
- #573C00
#573C00
oklch(37.7% 0.078 80.1)
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 #28416B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.036
- Marine Blue #01386A ΔE 0.046
- Charcoal #264653 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.055
- Light Navy #155084 ΔE 0.055
- Cobalt #1E488F ΔE 0.061
Use #28416B 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.