#509D97
Closest named color: Dull Teal (#5F9E8F). oklch(64.5% 0.077 188.8), rgb(80, 157, 151).
Aa
Black text reads best on this color (6.61:1).
About this color
#509D97 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.077 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.018 away. Black text reads best on it, at 6.61:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 6.61:1 |
| White text | 3.17:1 |
Values
| HEX | #509D97 |
| RGB | rgb(80, 157, 151) |
| HSL | hsl(175, 32%, 46%) |
| OKLCH | oklch(64.5% 0.077 188.8) |
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 #509D97 | 3.17:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #509D97 | 6.61:1 | AA | Lc 45.3 | Large or bold text, headings |
| #509D97 text on white | 3.17:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #509D97 text on black | 6.61:1 | AA | Lc -43.0 | Non-text elements, placeholder text |
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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDC
oklch(88.5% 0.022 189.5)
-
Step 300
300
#A6C9C5
oklch(80.9% 0.038 187.9)
-
Step 400
400
#74ADA8
oklch(70.7% 0.06 189)
-
Step 500
500 (this color)
#509D97
oklch(64.5% 0.077 188.8)
-
Step 600
600
#28837D
oklch(55.6% 0.084 188.7)
-
Step 700
700
#196F69
oklch(49.2% 0.078 187.9)
-
Step 800
800
#195A56
oklch(42.7% 0.064 189.1)
-
Step 900
900
#1C4A47
oklch(37.6% 0.05 189.4)
-
Step 950
950
#122B29
oklch(26.8% 0.031 188.7)
#509D97 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) | #969697 | 0.082 |
| Deuteranopia (no green cones) | #898C98 | 0.078 |
| Tritanopia (no blue cones) | #26A09B | 0.025 |
| Achromatopsia (no color) | #909090 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509D97
#509D97
oklch(64.5% 0.077 188.8)
- #B77A84
#B77A84
oklch(64.5% 0.077 8.7)
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 #509D97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.018
- Grey Teal #5E9B8A ΔE 0.020
- Cadet Blue #5F9EA0 ΔE 0.021
- Sea #3C9992 ΔE 0.022
- Persian Green #2A9D8F ΔE 0.030
- Blue Green #0F9B8E ΔE 0.040
- Dusty Teal #4C9085 ΔE 0.041
- Teal Green #0A9396 ΔE 0.051
Use #509D97 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.