#5BB188
Closest named color: Tea (#65AB7C). oklch(69.5% 0.104 161.2), rgb(91, 177, 136).
Aa
Black text reads best on this color (8.08:1).
About this color
#5BB188 is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.104 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.019 away. Black text reads best on it, at 8.08:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 8.08:1 |
| White text | 2.59:1 |
Values
| HEX | #5BB188 |
| RGB | rgb(91, 177, 136) |
| HSL | hsl(151, 36%, 53%) |
| OKLCH | oklch(69.5% 0.104 161.2) |
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 #5BB188 | 2.59:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #5BB188 | 8.08:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #5BB188 text on white | 2.59:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #5BB188 text on black | 8.08:1 | AAA | Lc -51.4 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E0EEE6
oklch(93.6% 0.018 161.1)
-
Step 200
200
#C5E1D2
oklch(88.5% 0.036 162.3)
-
Step 300
300
#9CCEB3
oklch(80.9% 0.065 160.9)
-
Step 400
400 (this color)
#5BB188
oklch(69.5% 0.104 161.2)
-
Step 500
500
#1CA26F
oklch(63.2% 0.134 161.2)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3E
oklch(42.6% 0.094 161.6)
-
Step 900
900
#004F33
oklch(37.8% 0.084 161.3)
-
Step 950
950
#052F1E
oklch(27.2% 0.055 161.4)
#5BB188 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) | #AFA686 | 0.101 |
| Deuteranopia (no green cones) | #A29D8B | 0.097 |
| Tritanopia (no blue cones) | #41B1A6 | 0.044 |
| Achromatopsia (no color) | #A1A1A1 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB188
#5BB188
oklch(69.5% 0.104 161.2)
- #C983B0
#C983B0
oklch(69.6% 0.104 341.2)
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 #5BB188, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.019
- Greeny Blue #42B395 ΔE 0.022
- Dusty Green #76A973 ΔE 0.034
- Dark Seafoam Green #3EAF76 ΔE 0.036
- Faded Green #7BB274 ΔE 0.038
- Bluey Green #2BB179 ΔE 0.040
- Algae #54AC68 ΔE 0.043
- Medium Sea Green #3CB371 ΔE 0.043
Use #5BB188 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.