#51ABA0
Closest named color: Light Sea Green (#20B2AA). oklch(68.3% 0.088 184.8), rgb(81, 171, 160).
Aa
Black text reads best on this color (7.68:1).
About this color
#51ABA0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.088 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.028 away. Black text reads best on it, at 7.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.68:1 |
| White text | 2.73:1 |
Values
| HEX | #51ABA0 |
| RGB | rgb(81, 171, 160) |
| HSL | hsl(173, 36%, 49%) |
| OKLCH | oklch(68.3% 0.088 184.8) |
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 #51ABA0 | 2.73:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #51ABA0 | 7.68:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #51ABA0 text on white | 2.73:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #51ABA0 text on black | 7.68:1 | AAA | Lc -49.2 | 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 400.
-
Step 50
50
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEEEB
oklch(93.7% 0.016 182.7)
-
Step 200
200
#C4E0DB
oklch(88.5% 0.03 183.7)
-
Step 300
300
#99CDC5
oklch(81% 0.055 184.5)
-
Step 400
400 (this color)
#51ABA0
oklch(68.3% 0.088 184.8)
-
Step 500
500
#009F92
oklch(63.2% 0.111 184.7)
-
Step 600
600
#00867B
oklch(55.7% 0.098 184.8)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#022E29
oklch(27.1% 0.047 183.4)
#51ABA0 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) | #A4A3A0 | 0.094 |
| Deuteranopia (no green cones) | #9598A1 | 0.088 |
| Tritanopia (no blue cones) | #18AEA7 | 0.027 |
| Achromatopsia (no color) | #9C9C9C | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51ABA0
#51ABA0
oklch(68.3% 0.088 184.8)
- #C88292
#C88292
oklch(68.3% 0.088 4.8)
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 #51ABA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.028
- Greeny Blue #42B395 ΔE 0.034
- Dull Teal #5F9E8F ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.039
- Topaz #13BBAF ΔE 0.047
- Grey Teal #5E9B8A ΔE 0.047
- Tea #65AB7C ΔE 0.052
- Turquoise Blue #06B1C4 ΔE 0.054
Use #51ABA0 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.