#304252
Closest named color: Charcoal (#264653). oklch(37.1% 0.036 245.8), rgb(48, 66, 82).
Aa
White text reads best on this color (10.36:1).
About this color
#304252 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.036 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.016 away. White text reads best on it, at 10.36:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.02:1 |
| White text | 10.36:1 |
Values
| HEX | #304252 |
| RGB | rgb(48, 66, 82) |
| HSL | hsl(208, 26%, 25%) |
| OKLCH | oklch(37.1% 0.036 245.8) |
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 #304252 | 10.36:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #304252 | 2.02:1 | Fails | Lc 9.9 | Not readable |
| #304252 text on white | 10.36:1 | AAA | Lc 94.0 | Preferred for body text |
| #304252 text on black | 2.02:1 | Fails | Lc -8.5 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B3C3D1
oklch(80.9% 0.026 244.5)
-
Step 400
400
#8BA4BA
oklch(70.7% 0.043 245)
-
Step 500
500
#6E8DA9
oklch(63% 0.055 246.1)
-
Step 600
600
#567795
oklch(55.6% 0.06 246.6)
-
Step 700
700
#46647F
oklch(49.1% 0.056 246.4)
-
Step 800
800
#3A5267
oklch(42.8% 0.046 245.6)
-
Step 900
900 (this color)
#304252
oklch(37.1% 0.036 245.8)
-
Step 950
950
#1D2831
oklch(27.1% 0.023 243.4)
#304252 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) | #3C4253 | 0.018 |
| Deuteranopia (no green cones) | #373E52 | 0.016 |
| Tritanopia (no blue cones) | #244647 | 0.031 |
| Achromatopsia (no color) | #404040 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304252
#304252
oklch(37.1% 0.036 245.8)
- #4D3C2B
#4D3C2B
oklch(37% 0.036 66.3)
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 #304252, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.016
- Dark Grey Blue #29465B ΔE 0.018
- Charcoal Grey #3C4142 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.034
- Onyx #343A40 ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.045
- Midnight Green #073B4C ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
Use #304252 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.