#59BB99
Closest named color: Greeny Blue (#42B395). oklch(72.3% 0.106 168.1), rgb(89, 187, 153).
Aa
Black text reads best on this color (8.99:1).
About this color
#59BB99 is a medium-light, moderately saturated green. In OKLCH its lightness is 72%, its chroma 0.106 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.030 away. Black text reads best on it, at 8.99:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.99:1 |
| White text | 2.33:1 |
Values
| HEX | #59BB99 |
| RGB | rgb(89, 187, 153) |
| HSL | hsl(159, 42%, 54%) |
| OKLCH | oklch(72.3% 0.106 168.1) |
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 #59BB99 | 2.33:1 | Fails | Lc -50.7 | Large or bold text, headings |
| Black text on #59BB99 | 8.99:1 | AAA | Lc 58.1 | Large or bold text, headings |
| #59BB99 text on white | 2.33:1 | Fails | Lc 45.8 | Large or bold text, headings |
| #59BB99 text on black | 8.99:1 | AAA | Lc -56.2 | 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
#F0F7F4
oklch(97% 0.008 168.8)
-
Step 100
100
#DEEEE7
oklch(93.5% 0.019 167.9)
-
Step 200
200
#C3E1D4
oklch(88.4% 0.036 167.5)
-
Step 300
300
#97CFB9
oklch(81% 0.066 168.4)
-
Step 400
400 (this color)
#59BB99
oklch(72.3% 0.106 168.1)
-
Step 500
500
#00A17B
oklch(63% 0.127 168.5)
-
Step 600
600
#008867
oklch(55.7% 0.112 168.2)
-
Step 700
700
#007256
oklch(49% 0.099 168.4)
-
Step 800
800
#005E46
oklch(42.8% 0.087 168)
-
Step 900
900
#004E3A
oklch(37.7% 0.076 168.5)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#59BB99 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) | #B7B097 | 0.107 |
| Deuteranopia (no green cones) | #A8A59B | 0.103 |
| Tritanopia (no blue cones) | #31BCB1 | 0.037 |
| Achromatopsia (no color) | #AAAAAA | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59BB99
#59BB99
oklch(72.3% 0.106 168.1)
- #D78AB1
#D78AB1
oklch(72.4% 0.106 348.3)
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 #59BB99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.030
- Topaz #13BBAF ΔE 0.041
- Green Blue #01C08D ΔE 0.044
- Greenblue #23C48B ΔE 0.047
- Tea #65AB7C ΔE 0.049
- Faded Green #7BB274 ΔE 0.050
- Light Sea Green #20B2AA ΔE 0.052
- Dark Sea Green #8FBC8F ΔE 0.053
Use #59BB99 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.