#5BB7BB
Closest named color: Topaz (#13BBAF). oklch(72.5% 0.088 199.2), rgb(91, 183, 187).
Aa
Black text reads best on this color (8.93:1).
About this color
#5BB7BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.088 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.043 away. Black text reads best on it, at 8.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.93:1 |
| White text | 2.35:1 |
Values
| HEX | #5BB7BB |
| RGB | rgb(91, 183, 187) |
| HSL | hsl(183, 41%, 55%) |
| OKLCH | oklch(72.5% 0.088 199.2) |
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 #5BB7BB | 2.35:1 | Fails | Lc -51.1 | Large or bold text, headings |
| Black text on #5BB7BB | 8.93:1 | AAA | Lc 57.8 | Large or bold text, headings |
| #5BB7BB text on white | 2.35:1 | Fails | Lc 46.1 | Large or bold text, headings |
| #5BB7BB text on black | 8.93:1 | AAA | Lc -55.9 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DEEDEE
oklch(93.5% 0.016 201.7)
-
Step 200
200
#C3E0E1
oklch(88.6% 0.031 199.2)
-
Step 300
300
#97CCCE
oklch(80.9% 0.055 199)
-
Step 400
400 (this color)
#5BB7BB
oklch(72.5% 0.088 199.2)
-
Step 500
500
#009DA2
oklch(63.2% 0.107 198.8)
-
Step 600
600
#008488
oklch(55.7% 0.095 198.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4E
oklch(37.8% 0.064 197.8)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#5BB7BB 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) | #ACB0BB | 0.090 |
| Deuteranopia (no green cones) | #9CA4BC | 0.084 |
| Tritanopia (no blue cones) | #12BDB8 | 0.037 |
| Achromatopsia (no color) | #A9A9A9 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB7BB
#5BB7BB
oklch(72.5% 0.088 199.2)
- #D89090
#D89090
oklch(72.5% 0.088 19.4)
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 #5BB7BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.043
- Turquoise Blue #06B1C4 ΔE 0.046
- Light Sea Green #20B2AA ΔE 0.046
- Greeny Blue #42B395 ΔE 0.060
- Greyblue #77A1B5 ΔE 0.063
- Bluegrey #85A3B2 ΔE 0.063
- Dark Turquoise #00CED1 ΔE 0.064
- Muted Teal #90B494 ΔE 0.069
Use #5BB7BB 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.