#5BB888
Closest named color: Greeny Blue (#42B395). oklch(71.2% 0.115 159), rgb(91, 184, 136).
Aa
Black text reads best on this color (8.65:1).
About this color
#5BB888 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.115 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.032 away. Black text reads best on it, at 8.65:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.65:1 |
| White text | 2.42:1 |
Values
| HEX | #5BB888 |
| RGB | rgb(91, 184, 136) |
| HSL | hsl(149, 40%, 54%) |
| OKLCH | oklch(71.2% 0.115 159) |
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 #5BB888 | 2.42:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #5BB888 | 8.65:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #5BB888 text on white | 2.42:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #5BB888 text on black | 8.65:1 | AAA | Lc -54.5 | 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
#F0F7F3
oklch(97% 0.009 161.4)
-
Step 100
100
#DFEEE5
oklch(93.5% 0.02 159.7)
-
Step 200
200
#C4E2D0
oklch(88.6% 0.04 159.2)
-
Step 300
300
#99CFB0
oklch(80.8% 0.071 159.1)
-
Step 400
400 (this color)
#5BB888
oklch(71.2% 0.115 159)
-
Step 500
500
#00A368
oklch(63.1% 0.145 158.9)
-
Step 600
600
#008957
oklch(55.5% 0.128 159.1)
-
Step 700
700
#007348
oklch(49% 0.113 158.9)
-
Step 800
800
#005F3B
oklch(42.8% 0.098 159.1)
-
Step 900
900
#004F30
oklch(37.7% 0.087 158.9)
-
Step 950
950
#022F1B
oklch(27% 0.06 158.6)
#5BB888 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) | #B6AC85 | 0.107 |
| Deuteranopia (no green cones) | #A9A28B | 0.105 |
| Tritanopia (no blue cones) | #40B7AB | 0.051 |
| Achromatopsia (no color) | #A6A6A6 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB888
#5BB888
oklch(71.2% 0.115 159)
- #D185BA
#D185BA
oklch(71.2% 0.115 338.8)
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 #5BB888, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.032
- Faded Green #7BB274 ΔE 0.034
- Tea #65AB7C ΔE 0.035
- Green Blue #01C08D ΔE 0.038
- Greenblue #23C48B ΔE 0.041
- Dark Seafoam Green #3EAF76 ΔE 0.042
- Boring Green #63B365 ΔE 0.042
- Medium Sea Green #3CB371 ΔE 0.042
Use #5BB888 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.