#155954
Closest named color: Deep Teal (#00555A). oklch(42.2% 0.066 187.7), rgb(21, 89, 84).
Aa
White text reads best on this color (8.11:1).
About this color
#155954 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.066 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.021 away. White text reads best on it, at 8.11:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #155954 |
| RGB | rgb(21, 89, 84) |
| HSL | hsl(176, 62%, 22%) |
| OKLCH | oklch(42.2% 0.066 187.7) |
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 #155954 | 8.11:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #155954 | 2.58:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #155954 text on white | 8.11:1 | AAA | Lc 87.8 | Fine for body text |
| #155954 text on black | 2.58:1 | Fails | Lc -14.4 | 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
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A5C9C5
oklch(80.9% 0.039 188.1)
-
Step 400
400
#73ADA7
oklch(70.6% 0.061 187.7)
-
Step 500
500
#4A9992
oklch(63.1% 0.079 187.7)
-
Step 600
600
#26837C
oklch(55.5% 0.085 187.7)
-
Step 700
700
#166F69
oklch(49.1% 0.079 188)
-
Step 800
800 (this color)
#155954
oklch(42.2% 0.066 187.7)
-
Step 900
900
#1B4A46
oklch(37.6% 0.051 187.6)
-
Step 950
950
#122C29
oklch(27.1% 0.033 185.7)
#155954 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) | #545454 | 0.070 |
| Deuteranopia (no green cones) | #4A4D55 | 0.065 |
| Tritanopia (no blue cones) | #005B57 | 0.009 |
| Achromatopsia (no color) | #505050 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155954
#155954
oklch(42.2% 0.066 187.7)
- #6C3E47
#6C3E47
oklch(42.2% 0.065 7.6)
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 #155954, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.021
- Dark Blue Green #005249 ΔE 0.029
- Dark Green Blue #1F6357 ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.034
- Petrol #005F6A ΔE 0.036
- Dark Teal #014D4E ΔE 0.042
- Dark Aqua #05696B ΔE 0.054
- Spruce #0A5F38 ΔE 0.055
Use #155954 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.