#12443B
Closest named color: Evergreen (#05472A). oklch(35.1% 0.055 178.6), rgb(18, 68, 59).
Aa
White text reads best on this color (10.96:1).
About this color
#12443B is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.055 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.035 away. White text reads best on it, at 10.96:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.91:1 |
| White text | 10.96:1 |
Values
| HEX | #12443B |
| RGB | rgb(18, 68, 59) |
| HSL | hsl(169, 58%, 17%) |
| OKLCH | oklch(35.1% 0.055 178.6) |
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 #12443B | 10.96:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #12443B | 1.91:1 | Fails | Lc 8.8 | Not readable |
| #12443B text on white | 10.96:1 | AAA | Lc 95.1 | Preferred for body text |
| #12443B text on black | 1.91:1 | Fails | Lc -7.5 | 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 900.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADED9
oklch(88.4% 0.022 179.1)
-
Step 300
300
#A5CAC1
oklch(81% 0.041 178.8)
-
Step 400
400
#72AEA1
oklch(70.6% 0.065 179.1)
-
Step 500
500
#499A8A
oklch(63.1% 0.083 178.8)
-
Step 600
600
#238574
oklch(55.7% 0.092 178.4)
-
Step 700
700
#127061
oklch(49% 0.085 178.6)
-
Step 800
800
#155B4F
oklch(42.6% 0.07 178.6)
-
Step 900
900 (this color)
#12443B
oklch(35.1% 0.055 178.6)
-
Step 950
950
#112C27
oklch(27% 0.035 179.9)
#12443B 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) | #413F3B | 0.058 |
| Deuteranopia (no green cones) | #3A3A3C | 0.056 |
| Tritanopia (no blue cones) | #004541 | 0.012 |
| Achromatopsia (no color) | #3C3C3C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12443B
#12443B
oklch(35.1% 0.055 178.6)
- #522E3A
#522E3A
oklch(35.1% 0.055 358.9)
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 #12443B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.035
- Dark Teal #014D4E ΔE 0.037
- Dark Blue Green #005249 ΔE 0.046
- Charcoal #264653 ΔE 0.048
- Midnight Green #073B4C ΔE 0.051
- Onyx #343A40 ΔE 0.052
- Pine Green #0A481E ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.052
Use #12443B 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.