#59A09D
Closest named color: Cadet Blue (#5F9EA0). oklch(65.9% 0.072 192), rgb(89, 160, 157).
Aa
Black text reads best on this color (6.93:1).
About this color
#59A09D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.072 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.010 away. Black text reads best on it, at 6.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.93:1 |
| White text | 3.02:1 |
Values
| HEX | #59A09D |
| RGB | rgb(89, 160, 157) |
| HSL | hsl(177, 29%, 49%) |
| OKLCH | oklch(65.9% 0.072 192) |
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 #59A09D | 3.02:1 | AA large text | Lc -62.3 | Content text, not long reading |
| Black text on #59A09D | 6.93:1 | AA | Lc 47.2 | Large or bold text, headings |
| #59A09D text on white | 3.02:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #59A09D text on black | 6.93:1 | AA | Lc -44.9 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CBDDDC
oklch(88.4% 0.019 192.8)
-
Step 300
300
#A8C8C6
oklch(80.9% 0.034 191.8)
-
Step 400
400
#77ACA9
oklch(70.7% 0.056 191.5)
-
Step 500
500 (this color)
#59A09D
oklch(65.9% 0.072 192)
-
Step 600
600
#30827F
oklch(55.7% 0.078 191.7)
-
Step 700
700
#216E6B
oklch(49.2% 0.073 191.3)
-
Step 800
800
#1E5957
oklch(42.6% 0.06 192)
-
Step 900
900
#204A48
oklch(37.9% 0.047 191.2)
-
Step 950
950
#142B2A
oklch(27% 0.029 191.9)
#59A09D 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) | #989A9D | 0.075 |
| Deuteranopia (no green cones) | #8C909E | 0.072 |
| Tritanopia (no blue cones) | #37A49F | 0.025 |
| Achromatopsia (no color) | #949494 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59A09D
#59A09D
oklch(65.9% 0.072 192)
- #B98086
#B98086
oklch(65.9% 0.071 12.2)
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 #59A09D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.010
- Dull Teal #5F9E8F ΔE 0.020
- Grey Teal #5E9B8A ΔE 0.027
- Sea #3C9992 ΔE 0.037
- Persian Green #2A9D8F ΔE 0.043
- Greyblue #77A1B5 ΔE 0.051
- Blue Green #0F9B8E ΔE 0.053
- Light Sea Green #20B2AA ΔE 0.054
Use #59A09D 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.