#303549
Closest named color: Gunmetal (#293241). oklch(33.3% 0.036 273.4), rgb(48, 53, 73).
Aa
White text reads best on this color (12.13:1).
About this color
#303549 is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.036 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.020 away. White text reads best on it, at 12.13:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.73:1 |
| White text | 12.13:1 |
Values
| HEX | #303549 |
| RGB | rgb(48, 53, 73) |
| HSL | hsl(228, 21%, 24%) |
| OKLCH | oklch(33.3% 0.036 273.4) |
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 #303549 | 12.13:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #303549 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #303549 text on white | 12.13:1 | AAA | Lc 97.7 | Preferred for body text |
| #303549 text on black | 1.73:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D6D9E3
oklch(88.6% 0.014 272.7)
-
Step 300
300
#BBC0D3
oklch(81% 0.027 274)
-
Step 400
400
#979FBC
oklch(70.6% 0.043 273.1)
-
Step 500
500
#7E88AC
oklch(63.2% 0.056 272.6)
-
Step 600
600
#687197
oklch(55.6% 0.06 274)
-
Step 700
700
#565F81
oklch(49.2% 0.056 272.8)
-
Step 800
800
#474D69
oklch(42.7% 0.047 274.9)
-
Step 900
900 (this color)
#303549
oklch(33.3% 0.036 273.4)
-
Step 950
950
#232632
oklch(27.1% 0.023 273.8)
#303549 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) | #2F374A | 0.006 |
| Deuteranopia (no green cones) | #2D3549 | 0.005 |
| Tritanopia (no blue cones) | #29393C | 0.033 |
| Achromatopsia (no color) | #363636 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #303549
#303549
oklch(33.3% 0.036 273.4)
- #3C3620
#3C3620
oklch(33.3% 0.036 94.7)
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 #303549, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.027
- Onyx #343A40 ΔE 0.027
- Space Cadet #2B2D42 ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.035
- Midnight Green #073B4C ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.051
- Charcoal #264653 ΔE 0.053
Use #303549 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.