#5BB7B0
Closest named color: Topaz (#13BBAF). oklch(72.1% 0.089 188.8), rgb(91, 183, 176).
Aa
Black text reads best on this color (8.84:1).
About this color
#5BB7B0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.089 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.035 away. Black text reads best on it, at 8.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.84:1 |
| White text | 2.37:1 |
Values
| HEX | #5BB7B0 |
| RGB | rgb(91, 183, 176) |
| HSL | hsl(175, 39%, 54%) |
| OKLCH | oklch(72.1% 0.089 188.8) |
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 #5BB7B0 | 2.37:1 | Fails | Lc -51.6 | Large or bold text, headings |
| Black text on #5BB7B0 | 8.84:1 | AAA | Lc 57.4 | Large or bold text, headings |
| #5BB7B0 text on white | 2.37:1 | Fails | Lc 46.6 | Large or bold text, headings |
| #5BB7B0 text on black | 8.84:1 | AAA | Lc -55.4 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C3E0DD
oklch(88.5% 0.031 189)
-
Step 300
300
#98CDC8
oklch(81% 0.055 188.9)
-
Step 400
400 (this color)
#5BB7B0
oklch(72.1% 0.089 188.8)
-
Step 500
500
#009E97
oklch(63.1% 0.109 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C48
oklch(37.6% 0.065 188.7)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#5BB7B0 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) | #AEAFB0 | 0.093 |
| Deuteranopia (no green cones) | #9FA3B1 | 0.089 |
| Tritanopia (no blue cones) | #24BBB5 | 0.029 |
| Achromatopsia (no color) | #A8A8A8 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB7B0
#5BB7B0
oklch(72.1% 0.089 188.8)
- #D68E99
#D68E99
oklch(72.2% 0.088 9.5)
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 #5BB7B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.035
- Light Sea Green #20B2AA ΔE 0.039
- Greeny Blue #42B395 ΔE 0.045
- Turquoise Blue #06B1C4 ΔE 0.053
- Muted Teal #90B494 ΔE 0.060
- Pewter #96A8A1 ΔE 0.068
- Dark Turquoise #00CED1 ΔE 0.068
- Bluegrey #85A3B2 ΔE 0.068
Use #5BB7B0 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.