#55A591
Closest named color: Dull Teal (#5F9E8F). oklch(66.5% 0.085 175.3), rgb(85, 165, 145).
Aa
Black text reads best on this color (7.17:1).
About this color
#55A591 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.085 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.021 away. Black text reads best on it, at 7.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.17:1 |
| White text | 2.92:1 |
Values
| HEX | #55A591 |
| RGB | rgb(85, 165, 145) |
| HSL | hsl(165, 32%, 49%) |
| OKLCH | oklch(66.5% 0.085 175.3) |
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 #55A591 | 2.92:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #55A591 | 7.17:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #55A591 text on white | 2.92:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #55A591 text on black | 7.17:1 | AAA | Lc -46.3 | Large or bold text, headings |
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 500.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CADED8
oklch(88.4% 0.023 175.9)
-
Step 300
300
#A6CABF
oklch(81% 0.041 174.7)
-
Step 400
400
#73AF9E
oklch(70.8% 0.067 174.5)
-
Step 500
500 (this color)
#55A591
oklch(66.5% 0.085 175.3)
-
Step 600
600
#268570
oklch(55.7% 0.093 174.7)
-
Step 700
700
#16705E
oklch(49% 0.085 175.4)
-
Step 800
800
#175C4D
oklch(42.8% 0.072 174.9)
-
Step 900
900
#1B4B40
oklch(37.6% 0.055 175.6)
-
Step 950
950
#122C25
oklch(27% 0.035 173.9)
#55A591 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) | #A09C90 | 0.089 |
| Deuteranopia (no green cones) | #939392 | 0.085 |
| Tritanopia (no blue cones) | #34A79F | 0.026 |
| Achromatopsia (no color) | #979797 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A591
#55A591
oklch(66.5% 0.085 175.3)
- #BE7E96
#BE7E96
oklch(66.6% 0.085 355.5)
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 #55A591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.021
- Grey Teal #5E9B8A ΔE 0.028
- Cadet Blue #5F9EA0 ΔE 0.037
- Greeny Blue #42B395 ΔE 0.040
- Persian Green #2A9D8F ΔE 0.040
- Tea #65AB7C ΔE 0.041
- Sea #3C9992 ΔE 0.044
- Light Sea Green #20B2AA ΔE 0.046
Use #55A591 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.