#12312E
Closest named color: Jet (#212529). oklch(28.9% 0.037 186.9), rgb(18, 49, 46).
Aa
White text reads best on this color (13.95:1).
About this color
#12312E is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.037 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.043 away. White text reads best on it, at 13.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.50:1 |
| White text | 13.95:1 |
Values
| HEX | #12312E |
| RGB | rgb(18, 49, 46) |
| HSL | hsl(174, 46%, 13%) |
| OKLCH | oklch(28.9% 0.037 186.9) |
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 #12312E | 13.95:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #12312E | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #12312E text on white | 13.95:1 | AAA | Lc 100.5 | Preferred for body text |
| #12312E text on black | 1.50:1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A1CAC5
oklch(80.8% 0.044 187.2)
-
Step 400
400
#6BAFA8
oklch(70.7% 0.07 187.4)
-
Step 500
500
#3B9B92
oklch(63.1% 0.09 186.6)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#114C47
oklch(37.9% 0.059 186.7)
-
Step 950
950 (this color)
#12312E
oklch(28.9% 0.037 186.9)
#12312E 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) | #2E2E2E | 0.039 |
| Deuteranopia (no green cones) | #292A2E | 0.038 |
| Tritanopia (no blue cones) | #013230 | 0.012 |
| Achromatopsia (no color) | #2C2C2C | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12312E
#12312E
oklch(28.9% 0.037 186.9)
- #3B2328
#3B2328
oklch(28.9% 0.037 6.1)
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 #12312E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.043
- Gunmetal #293241 ΔE 0.049
- Dark #1B2431 ΔE 0.049
- Pakistan Green #283618 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.053
- Midnight Green #073B4C ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.062
Use #12312E 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.