#29307D
Closest named color: Marine Blue (#01386A). oklch(35.3% 0.129 273.8), rgb(41, 48, 125).
Aa
White text reads best on this color (11.58:1).
About this color
#29307D is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.129 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.053 away. White text reads best on it, at 11.58:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.81:1 |
| White text | 11.58:1 |
Values
| HEX | #29307D |
| RGB | rgb(41, 48, 125) |
| HSL | hsl(235, 51%, 33%) |
| OKLCH | oklch(35.3% 0.129 273.8) |
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 #29307D | 11.58:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #29307D | 1.81:1 | Fails | Lc 7.6 | Not readable |
| #29307D text on white | 11.58:1 | AAA | Lc 96.2 | Preferred for body text |
| #29307D text on black | 1.81:1 | Fails | Lc 0.0 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CDD7FE
oklch(88.4% 0.055 273.9)
-
Step 300
300
#ADBDFF
oklch(81% 0.095 273.6)
-
Step 400
400
#8397FF
oklch(70.7% 0.153 273.6)
-
Step 500
500
#6779FE
oklch(63.1% 0.197 273.6)
-
Step 600
600
#525DEE
oklch(55.7% 0.215 273.8)
-
Step 700
700
#434BCF
oklch(49.1% 0.2 273.7)
-
Step 800
800
#373FA7
oklch(42.8% 0.165 273.7)
-
Step 900
900 (this color)
#29307D
oklch(35.3% 0.129 273.8)
-
Step 950
950
#1B214E
oklch(27.1% 0.082 273.9)
#29307D 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) | #003D80 | 0.043 |
| Deuteranopia (no green cones) | #00357B | 0.036 |
| Tritanopia (no blue cones) | #004351 | 0.108 |
| Achromatopsia (no color) | #393939 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #29307D
#29307D
oklch(35.3% 0.129 273.8)
- #483A00
#483A00
oklch(35.3% 0.072 93.7)
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 #29307D, closest first.
No curated palette has a color within ΔE 0.04 of #29307D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.053
- Twilight Blue #0A437A ΔE 0.055
- Marine #042E60 ΔE 0.065
- Midnight Blue #191970 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.067
- Cobalt #1E488F ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.072
- Royal #0C1793 ΔE 0.073
Use #29307D 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.