#33364B
Closest named color: Gunmetal (#293241). oklch(33.9% 0.037 277.9), rgb(51, 54, 75).
Aa
White text reads best on this color (11.86:1).
About this color
#33364B is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.037 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.027 away. White text reads best on it, at 11.86:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.77:1 |
| White text | 11.86:1 |
Values
| HEX | #33364B |
| RGB | rgb(51, 54, 75) |
| HSL | hsl(233, 19%, 25%) |
| OKLCH | oklch(33.9% 0.037 277.9) |
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 #33364B | 11.86:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #33364B | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #33364B text on white | 11.86:1 | AAA | Lc 97.2 | Preferred for body text |
| #33364B text on black | 1.77:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D8E4
oklch(88.4% 0.017 278.5)
-
Step 300
300
#BCBFD3
oklch(80.9% 0.028 279)
-
Step 400
400
#9A9EBD
oklch(70.7% 0.045 279.4)
-
Step 500
500
#8187AC
oklch(63.2% 0.056 277.5)
-
Step 600
600
#6A7098
oklch(55.6% 0.063 277.6)
-
Step 700
700
#595E81
oklch(49.2% 0.056 277.8)
-
Step 800
800
#494D69
oklch(42.8% 0.047 277.9)
-
Step 900
900 (this color)
#33364B
oklch(33.9% 0.037 277.9)
-
Step 950
950
#242532
oklch(26.9% 0.024 281.2)
#33364B 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) | #30384C | 0.007 |
| Deuteranopia (no green cones) | #2E364A | 0.008 |
| Tritanopia (no blue cones) | #2D3A3D | 0.034 |
| Achromatopsia (no color) | #373737 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33364B
#33364B
oklch(33.9% 0.037 277.9)
- #3D3821
#3D3821
oklch(33.9% 0.037 97.4)
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 #33364B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.027
- Onyx #343A40 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.047
- Midnight Green #073B4C ΔE 0.047
- Charcoal #264653 ΔE 0.051
Use #33364B 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.