#153131
Closest named color: Jet (#212529). oklch(29.1% 0.034 195.5), rgb(21, 49, 49).
Aa
White text reads best on this color (13.85:1).
About this color
#153131 is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.034 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.041 away. White text reads best on it, at 13.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.51:1 |
| White text | 13.85:1 |
Values
| HEX | #153131 |
| RGB | rgb(21, 49, 49) |
| HSL | hsl(180, 40%, 14%) |
| OKLCH | oklch(29.1% 0.034 195.5) |
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 #153131 | 13.85:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #153131 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #153131 text on white | 13.85:1 | AAA | Lc 100.4 | Preferred for body text |
| #153131 text on black | 1.51:1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E1ECEC
oklch(93.5% 0.012 197)
-
Step 200
200
#C9DEDE
oklch(88.5% 0.022 196.8)
-
Step 300
300
#A3C9C9
oklch(80.8% 0.04 196.4)
-
Step 400
400
#6FADAD
oklch(70.6% 0.064 195.8)
-
Step 500
500
#439999
oklch(63.1% 0.082 195.3)
-
Step 600
600
#188384
oklch(55.5% 0.089 195.9)
-
Step 700
700
#036F70
oklch(49.1% 0.083 195.9)
-
Step 800
800
#0D5A5B
oklch(42.6% 0.068 196.3)
-
Step 900
900
#174A4B
oklch(37.6% 0.053 197)
-
Step 950
950 (this color)
#153131
oklch(29.1% 0.034 195.5)
#153131 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) | #2E2F31 | 0.035 |
| Deuteranopia (no green cones) | #292B31 | 0.033 |
| Tritanopia (no blue cones) | #053331 | 0.014 |
| Achromatopsia (no color) | #2D2D2D | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153131
#153131
oklch(29.1% 0.034 195.5)
- #3B2526
#3B2526
oklch(29.2% 0.034 16.3)
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 #153131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.041
- Gunmetal #293241 ΔE 0.042
- Dark #1B2431 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.050
- Midnight Green #073B4C ΔE 0.051
- Pakistan Green #283618 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.057
Use #153131 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.