#31364D
Closest named color: Gunmetal (#293241). oklch(33.9% 0.041 274.5), rgb(49, 54, 77).
Aa
White text reads best on this color (11.89:1).
About this color
#31364D is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.041 and its hue 275°. 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 11.89:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.76:1 |
| White text | 11.89:1 |
Values
| HEX | #31364D |
| RGB | rgb(49, 54, 77) |
| HSL | hsl(229, 22%, 25%) |
| OKLCH | oklch(33.9% 0.041 274.5) |
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 #31364D | 11.89:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #31364D | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #31364D text on white | 11.89:1 | AAA | Lc 97.3 | Preferred for body text |
| #31364D text on black | 1.76:1 | 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
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D5D9E5
oklch(88.6% 0.017 271.2)
-
Step 300
300
#BAC0D5
oklch(81% 0.03 273)
-
Step 400
400
#979FC0
oklch(70.7% 0.049 274.4)
-
Step 500
500
#7E87B0
oklch(63.1% 0.063 274.9)
-
Step 600
600
#67709C
oklch(55.5% 0.069 275)
-
Step 700
700
#565E85
oklch(49.1% 0.063 274.9)
-
Step 800
800
#464D6C
oklch(42.7% 0.052 274.2)
-
Step 900
900 (this color)
#31364D
oklch(33.9% 0.041 274.5)
-
Step 950
950
#222633
oklch(27.1% 0.025 271.4)
#31364D 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) | #2F384E | 0.007 |
| Deuteranopia (no green cones) | #2D364C | 0.007 |
| Tritanopia (no blue cones) | #293A3E | 0.036 |
| Achromatopsia (no color) | #373737 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31364D
#31364D
oklch(33.9% 0.041 274.5)
- #3E371E
#3E371E
oklch(33.7% 0.041 94.3)
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 #31364D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.028
- Onyx #343A40 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.034
- Midnight Green #073B4C ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.051
Use #31364D 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.