#29428C
Closest named color: Cobalt (#1E488F). oklch(40.3% 0.127 266.6), rgb(41, 66, 140).
Aa
White text reads best on this color (9.32:1).
About this color
#29428C is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.127 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.018 away. White text reads best on it, at 9.32:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #29428C |
| RGB | rgb(41, 66, 140) |
| HSL | hsl(225, 55%, 35%) |
| OKLCH | oklch(40.3% 0.127 266.6) |
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 #29428C | 9.32:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #29428C | 2.25:1 | Fails | Lc 12.8 | Not readable |
| #29428C text on white | 9.32:1 | AAA | Lc 91.2 | Preferred for body text |
| #29428C text on black | 2.25:1 | Fails | Lc -11.2 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ABC0F1
oklch(80.9% 0.073 266.7)
-
Step 400
400
#7F9EEB
oklch(70.8% 0.119 266.7)
-
Step 500
500
#5F84E4
oklch(63.1% 0.15 266.3)
-
Step 600
600
#476BD2
oklch(55.6% 0.164 266.6)
-
Step 700
700
#3959B6
oklch(49.2% 0.152 266.5)
-
Step 800
800 (this color)
#29428C
oklch(40.3% 0.127 266.6)
-
Step 900
900
#293E76
oklch(37.8% 0.099 266.3)
-
Step 950
950
#182545
oklch(27.1% 0.062 265.8)
#29428C 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) | #144C8F | 0.029 |
| Deuteranopia (no green cones) | #00428B | 0.028 |
| Tritanopia (no blue cones) | #005460 | 0.104 |
| Achromatopsia (no color) | #474747 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #29428C
#29428C
oklch(40.3% 0.127 266.6)
- #5C4500
#5C4500
oklch(40.4% 0.083 86.9)
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 #29428C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.018
- Twilight Blue #0A437A ΔE 0.040
- Blueberry #464196 ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.044
- Light Navy #155084 ΔE 0.045
- Dusk Blue #26538D ΔE 0.048
- Sapphire #2138AB ΔE 0.058
- Deep Sea Blue #015482 ΔE 0.059
Use #29428C 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.