#12554C
Closest named color: Dark Blue Green (#005249). oklch(40.7% 0.066 181.8), rgb(18, 85, 76).
Aa
White text reads best on this color (8.64:1).
About this color
#12554C is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.066 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.014 away. White text reads best on it, at 8.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.42:1 |
| White text | 8.64:1 |
Values
| HEX | #12554C |
| RGB | rgb(18, 85, 76) |
| HSL | hsl(172, 65%, 20%) |
| OKLCH | oklch(40.7% 0.066 181.8) |
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 #12554C | 8.64:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #12554C | 2.42:1 | Fails | Lc 14.6 | Not readable |
| #12554C text on white | 8.64:1 | AAA | Lc 89.4 | Fine for body text |
| #12554C text on black | 2.42:1 | 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
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A6C9C2
oklch(80.8% 0.039 181.8)
-
Step 400
400
#74AEA3
oklch(70.8% 0.063 181.2)
-
Step 500
500
#4C998D
oklch(63% 0.079 182.3)
-
Step 600
600
#2A8477
oklch(55.7% 0.086 181.6)
-
Step 700
700
#1A6F64
oklch(49% 0.08 182.2)
-
Step 800
800 (this color)
#12554C
oklch(40.7% 0.066 181.8)
-
Step 900
900
#1D4B43
oklch(37.8% 0.052 180.2)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#12554C 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) | #51504C | 0.070 |
| Deuteranopia (no green cones) | #48494D | 0.067 |
| Tritanopia (no blue cones) | #005752 | 0.011 |
| Achromatopsia (no color) | #4C4C4C | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12554C
#12554C
oklch(40.7% 0.066 181.8)
- #673A47
#673A47
oklch(40.8% 0.066 1.8)
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 #12554C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.014
- Deep Teal #00555A ΔE 0.024
- Dark Teal #014D4E ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.047
- Petrol #005F6A ΔE 0.051
- Spruce #0A5F38 ΔE 0.053
- Pine #2B5D34 ΔE 0.055
Use #12554C 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.