#304176
Closest named color: Twilight Blue (#0A437A). oklch(38.9% 0.093 268.5), rgb(48, 65, 118).
Aa
White text reads best on this color (9.79:1).
About this color
#304176 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.093 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.033 away. White text reads best on it, at 9.79:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.14:1 |
| White text | 9.79:1 |
Values
| HEX | #304176 |
| RGB | rgb(48, 65, 118) |
| HSL | hsl(225, 42%, 33%) |
| OKLCH | oklch(38.9% 0.093 268.5) |
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 #304176 | 9.79:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #304176 | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #304176 text on white | 9.79:1 | AAA | Lc 92.6 | Preferred for body text |
| #304176 text on black | 2.14:1 | Fails | Lc -9.9 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F4
oklch(88.5% 0.039 267.9)
-
Step 300
300
#AEC0EE
oklch(81% 0.068 268.2)
-
Step 400
400
#839DE6
oklch(70.6% 0.111 268.5)
-
Step 500
500
#6683DF
oklch(63% 0.142 268.9)
-
Step 600
600
#4E6BCD
oklch(55.6% 0.155 268.6)
-
Step 700
700
#3F59B1
oklch(49.1% 0.143 268.4)
-
Step 800
800
#34498F
oklch(42.7% 0.118 268.5)
-
Step 900
900 (this color)
#304176
oklch(38.9% 0.093 268.5)
-
Step 950
950
#1A2443
oklch(26.9% 0.06 268.7)
#304176 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) | #2A4778 | 0.018 |
| Deuteranopia (no green cones) | #214175 | 0.018 |
| Tritanopia (no blue cones) | #024D55 | 0.084 |
| Achromatopsia (no color) | #444444 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304176
#304176
oklch(38.9% 0.093 268.5)
- #564200
#564200
oklch(39% 0.08 89.1)
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 #304176, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.033
- Cobalt #1E488F ΔE 0.045
- Light Navy #155084 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.054
- Marine Blue #01386A ΔE 0.057
- Dusk Blue #26538D ΔE 0.059
- Deep Sea Blue #015482 ΔE 0.059
Use #304176 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.