#5BBCA4
Closest named color: Topaz (#13BBAF). oklch(73% 0.099 175), rgb(91, 188, 164).
Aa
Black text reads best on this color (9.17:1).
About this color
#5BBCA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.099 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.036 away. Black text reads best on it, at 9.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.17:1 |
| White text | 2.28:1 |
Values
| HEX | #5BBCA4 |
| RGB | rgb(91, 188, 164) |
| HSL | hsl(165, 42%, 55%) |
| OKLCH | oklch(73% 0.099 175) |
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 #5BBCA4 | 2.28:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #5BBCA4 | 9.17:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #5BBCA4 text on white | 2.28:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #5BBCA4 text on black | 9.17:1 | AAA | Lc -57.2 | 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
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DEEEE9
oklch(93.6% 0.018 175.3)
-
Step 200
200
#C3E1D8
oklch(88.5% 0.034 175.5)
-
Step 300
300
#97CEBE
oklch(80.9% 0.061 174.8)
-
Step 400
400 (this color)
#5BBCA4
oklch(73% 0.099 175)
-
Step 500
500
#00A085
oklch(63% 0.119 175)
-
Step 600
600
#008770
oklch(55.7% 0.105 175.1)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#5BBCA4 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) | #B6B2A3 | 0.103 |
| Deuteranopia (no green cones) | #A7A7A6 | 0.098 |
| Tritanopia (no blue cones) | #2DBEB5 | 0.031 |
| Achromatopsia (no color) | #ABABAB | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BBCA4
#5BBCA4
oklch(73% 0.099 175)
- #D98DAB
#D98DAB
oklch(72.9% 0.099 354.6)
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 #5BBCA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.036
- Greeny Blue #42B395 ΔE 0.038
- Light Sea Green #20B2AA ΔE 0.049
- Medium Aquamarine #66CDAA ΔE 0.050
- Muted Teal #90B494 ΔE 0.053
- Dark Sea Green #8FBC8F ΔE 0.055
- Green Blue #01C08D ΔE 0.056
- Greenblue #23C48B ΔE 0.058
Use #5BBCA4 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.