#12554E
Closest named color: Dark Blue Green (#005249). oklch(40.7% 0.065 184.6), rgb(18, 85, 78).
Aa
White text reads best on this color (8.62:1).
About this color
#12554E is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.065 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.015 away. White text reads best on it, at 8.62:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #12554E |
| RGB | rgb(18, 85, 78) |
| HSL | hsl(174, 65%, 20%) |
| OKLCH | oklch(40.7% 0.065 184.6) |
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 #12554E | 8.62:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #12554E | 2.43:1 | Fails | Lc 14.7 | Not readable |
| #12554E text on white | 8.62:1 | AAA | Lc 89.3 | Fine for body text |
| #12554E text on black | 2.43:1 | Fails | Lc -12.9 | 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 800.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CBDEDB
oklch(88.6% 0.021 185.4)
-
Step 300
300
#A6C9C3
oklch(80.9% 0.038 183.8)
-
Step 400
400
#74ADA5
oklch(70.6% 0.061 184.9)
-
Step 500
500
#4C998F
oklch(63.1% 0.078 184.4)
-
Step 600
600
#298379
oklch(55.5% 0.085 184.5)
-
Step 700
700
#1A6F66
oklch(49.1% 0.079 184.5)
-
Step 800
800 (this color)
#12554E
oklch(40.7% 0.065 184.6)
-
Step 900
900
#1D4A45
oklch(37.6% 0.05 185.5)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#12554E 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) | #50504E | 0.069 |
| Deuteranopia (no green cones) | #47494F | 0.065 |
| Tritanopia (no blue cones) | #005753 | 0.009 |
| Achromatopsia (no color) | #4C4C4C | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12554E
#12554E
oklch(40.7% 0.065 184.6)
- #673A45
#673A45
oklch(40.7% 0.065 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 #12554E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.015
- Deep Teal #00555A ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.029
- Dark Teal #014D4E ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.047
- Petrol #005F6A ΔE 0.048
- Charcoal #264653 ΔE 0.054
- Spruce #0A5F38 ΔE 0.056
Use #12554E 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.