#15312E
Closest named color: Jet (#212529). oklch(29% 0.035 186.4), rgb(21, 49, 46).
Aa
White text reads best on this color (13.90:1).
About this color
#15312E is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.035 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.042 away. White text reads best on it, at 13.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.51:1 |
| White text | 13.90:1 |
Values
| HEX | #15312E |
| RGB | rgb(21, 49, 46) |
| HSL | hsl(174, 40%, 14%) |
| OKLCH | oklch(29% 0.035 186.4) |
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 #15312E | 13.90:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #15312E | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #15312E text on white | 13.90:1 | AAA | Lc 100.4 | Preferred for body text |
| #15312E 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
#E2EDEB
oklch(93.7% 0.012 184.1)
-
Step 200
200
#C9DEDB
oklch(88.4% 0.023 186.4)
-
Step 300
300
#A4CAC5
oklch(81% 0.041 186.6)
-
Step 400
400
#70AEA7
oklch(70.7% 0.065 186.8)
-
Step 500
500
#449A91
oklch(63.1% 0.084 186.1)
-
Step 600
600
#1B847C
oklch(55.6% 0.09 187)
-
Step 700
700
#067068
oklch(49.1% 0.085 186.1)
-
Step 800
800
#0F5B55
oklch(42.7% 0.07 186.7)
-
Step 900
900
#174B46
oklch(37.7% 0.055 186.2)
-
Step 950
950 (this color)
#15312E
oklch(29% 0.035 186.4)
#15312E 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) | #2F2E2E | 0.038 |
| Deuteranopia (no green cones) | #2A2B2E | 0.035 |
| Tritanopia (no blue cones) | #073230 | 0.011 |
| Achromatopsia (no color) | #2C2C2C | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15312E
#15312E
oklch(29% 0.035 186.4)
- #3A2429
#3A2429
oklch(29% 0.034 4.6)
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 #15312E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.042
- Gunmetal #293241 ΔE 0.046
- Dark #1B2431 ΔE 0.049
- Pakistan Green #283618 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.055
- Midnight Green #073B4C ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.061
Use #15312E 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.