#5BB174
Closest named color: Algae (#54AC68). oklch(69% 0.123 151.4), rgb(91, 177, 116).
Aa
Black text reads best on this color (7.98:1).
About this color
#5BB174 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.123 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.020 away. Black text reads best on it, at 7.98:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.98:1 |
| White text | 2.62:1 |
Values
| HEX | #5BB174 |
| RGB | rgb(91, 177, 116) |
| HSL | hsl(137, 36%, 53%) |
| OKLCH | oklch(69% 0.123 151.4) |
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 #5BB174 | 2.62:1 | Fails | Lc -56.2 | Large or bold text, headings |
| Black text on #5BB174 | 7.98:1 | AAA | Lc 53.0 | Large or bold text, headings |
| #5BB174 text on white | 2.62:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #5BB174 text on black | 7.98:1 | AAA | Lc -50.8 | 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
#F1F8F2
oklch(97.2% 0.011 149.9)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C5E2CB
oklch(88.5% 0.044 151.5)
-
Step 300
300
#9CCFA8
oklch(80.8% 0.076 151.6)
-
Step 400
400 (this color)
#5BB174
oklch(69% 0.123 151.4)
-
Step 500
500
#21A356
oklch(63.1% 0.157 151.6)
-
Step 600
600
#008B43
oklch(55.7% 0.149 151.3)
-
Step 700
700
#007538
oklch(49.2% 0.131 151.5)
-
Step 800
800
#00602C
oklch(42.8% 0.115 151.2)
-
Step 900
900
#005024
oklch(37.7% 0.101 151.4)
-
Step 950
950
#062F15
oklch(27% 0.065 151.2)
#5BB174 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) | #B2A570 | 0.106 |
| Deuteranopia (no green cones) | #A59C78 | 0.103 |
| Tritanopia (no blue cones) | #49AFA1 | 0.065 |
| Achromatopsia (no color) | #A0A0A0 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB174
#5BB174
oklch(69% 0.123 151.4)
- #C77EBE
#C77EBE
oklch(69% 0.123 331.3)
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 #5BB174, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.020
- Boring Green #63B365 ΔE 0.022
- Dark Seafoam Green #3EAF76 ΔE 0.023
- Medium Sea Green #3CB371 ΔE 0.023
- Tea #65AB7C ΔE 0.025
- Bluey Green #2BB179 ΔE 0.030
- Faded Green #7BB274 ΔE 0.032
- Dark Seafoam #1FB57A ΔE 0.032
Use #5BB174 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.