#27313B
Closest named color: Gunmetal (#293241). oklch(30.8% 0.023 248.6), rgb(39, 49, 59).
Aa
White text reads best on this color (13.21:1).
About this color
#27313B is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.011 away. White text reads best on it, at 13.21:1.
| Hue family | Neutrals |
| Lightness | dark (31%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.58:1 |
| White text | 13.21:1 |
Values
| HEX | #27313B |
| RGB | rgb(39, 49, 59) |
| HSL | hsl(210, 20%, 19%) |
| OKLCH | oklch(30.8% 0.023 248.6) |
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 #27313B | 13.21:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #27313B | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #27313B text on white | 13.21:1 | AAA | Lc 99.6 | Preferred for body text |
| #27313B text on black | 1.58:1 | 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 950.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE3
oklch(88.5% 0.015 251.2)
-
Step 300
300
#B4C3D2
oklch(81% 0.027 248.2)
-
Step 400
400
#8CA3BB
oklch(70.6% 0.044 249.6)
-
Step 500
500
#708DAA
oklch(63.2% 0.055 248.7)
-
Step 600
600
#587795
oklch(55.7% 0.059 248.1)
-
Step 700
700
#48647F
oklch(49.2% 0.055 248.1)
-
Step 800
800
#3B5167
oklch(42.6% 0.046 248.9)
-
Step 900
900
#334354
oklch(37.6% 0.036 250.3)
-
Step 950
950 (this color)
#27313B
oklch(30.8% 0.023 248.6)
#27313B 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) | #2D313B | 0.010 |
| Deuteranopia (no green cones) | #2B2F3B | 0.009 |
| Tritanopia (no blue cones) | #213334 | 0.019 |
| Achromatopsia (no color) | #303030 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27313B
#27313B
oklch(30.8% 0.023 248.6)
- #382E24
#382E24
oklch(30.9% 0.023 66.8)
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 #27313B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.011
- Space Cadet #2B2D42 ΔE 0.022
- Onyx #343A40 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.039
- Midnight Green #073B4C ΔE 0.044
- Oxford Blue #1B263B ΔE 0.044
- Jet #212529 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.049
Use #27313B 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.