#63A189
Closest named color: Dull Teal (#5F9E8F). oklch(66% 0.074 167.5), rgb(99, 161, 137).
Aa
Black text reads best on this color (6.98:1).
About this color
#63A189 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.074 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.015 away. Black text reads best on it, at 6.98:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 6.98:1 |
| White text | 3.00:1 |
Values
| HEX | #63A189 |
| RGB | rgb(99, 161, 137) |
| HSL | hsl(157, 25%, 51%) |
| OKLCH | oklch(66% 0.074 167.5) |
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 #63A189 | 3.00:1 | AA large text | Lc -62.0 | Content text, not long reading |
| Black text on #63A189 | 6.98:1 | AA | Lc 47.4 | Large or bold text, headings |
| #63A189 text on white | 3.00:1 | AA large text | Lc 56.6 | Large or bold text, headings |
| #63A189 text on black | 6.98:1 | AA | Lc -45.1 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#ABC9BC
oklch(81% 0.037 167.4)
-
Step 400
400
#7DAD99
oklch(70.8% 0.059 167)
-
Step 500
500 (this color)
#63A189
oklch(66% 0.074 167.5)
-
Step 600
600
#3E826A
oklch(55.5% 0.079 168)
-
Step 700
700
#2F6E58
oklch(49% 0.075 167.7)
-
Step 800
800
#285A48
oklch(42.7% 0.062 167.4)
-
Step 900
900
#264A3C
oklch(37.7% 0.049 166.7)
-
Step 950
950
#172B23
oklch(26.9% 0.03 166.8)
#63A189 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) | #9E9988 | 0.075 |
| Deuteranopia (no green cones) | #94928B | 0.072 |
| Tritanopia (no blue cones) | #52A29A | 0.026 |
| Achromatopsia (no color) | #959595 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A189
#63A189
oklch(66% 0.074 167.5)
- #B5809A
#B5809A
oklch(66.1% 0.074 348.4)
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 #63A189, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.015
- Grey Teal #5E9B8A ΔE 0.020
- Greeny Grey #7EA07A ΔE 0.033
- Cadet Blue #5F9EA0 ΔE 0.038
- Tea #65AB7C ΔE 0.040
- Grey Green #86A17D ΔE 0.041
- Persian Green #2A9D8F ΔE 0.046
- Sea #3C9992 ΔE 0.047
Use #63A189 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.