#20313D
Closest named color: Gunmetal (#293241). oklch(30.4% 0.031 239.8), rgb(32, 49, 61).
Aa
White text reads best on this color (13.39:1).
About this color
#20313D is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.031 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.016 away. White text reads best on it, at 13.39:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.56:1 |
| White text | 13.39:1 |
Values
| HEX | #20313D |
| RGB | rgb(32, 49, 61) |
| HSL | hsl(205, 31%, 18%) |
| OKLCH | oklch(30.4% 0.031 239.8) |
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 #20313D | 13.39:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #20313D | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #20313D text on white | 13.39:1 | AAA | Lc 99.8 | Preferred for body text |
| #20313D text on black | 1.56:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ACC4D6
oklch(80.8% 0.036 240.4)
-
Step 400
400
#7FA6C2
oklch(70.7% 0.059 239.9)
-
Step 500
500
#5D90B3
oklch(63.1% 0.076 239.6)
-
Step 600
600
#427A9F
oklch(55.7% 0.083 239.5)
-
Step 700
700
#346688
oklch(49.1% 0.077 240.5)
-
Step 800
800
#2C536E
oklch(42.6% 0.063 240.7)
-
Step 900
900
#284559
oklch(37.7% 0.049 240)
-
Step 950
950 (this color)
#20313D
oklch(30.4% 0.031 239.8)
#20313D 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) | #2C313E | 0.018 |
| Deuteranopia (no green cones) | #282E3D | 0.015 |
| Tritanopia (no blue cones) | #153435 | 0.025 |
| Achromatopsia (no color) | #2F2F2F | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20313D
#20313D
oklch(30.4% 0.031 239.8)
- #3B2B1F
#3B2B1F
oklch(30.4% 0.031 58.1)
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 #20313D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.016
- Space Cadet #2B2D42 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.038
- Midnight Green #073B4C ΔE 0.039
- Oxford Blue #1B263B ΔE 0.039
- Onyx #343A40 ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.046
- Dark #1B2431 ΔE 0.047
Use #20313D 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.