#5BB0B5
Closest named color: Light Sea Green (#20B2AA). oklch(70.6% 0.083 200.5), rgb(91, 176, 181).
Aa
Black text reads best on this color (8.32:1).
About this color
#5BB0B5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.083 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.040 away. Black text reads best on it, at 8.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.32:1 |
| White text | 2.52:1 |
Values
| HEX | #5BB0B5 |
| RGB | rgb(91, 176, 181) |
| HSL | hsl(183, 38%, 53%) |
| OKLCH | oklch(70.6% 0.083 200.5) |
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 #5BB0B5 | 2.52:1 | Fails | Lc -54.4 | Large or bold text, headings |
| Black text on #5BB0B5 | 8.32:1 | AAA | Lc 54.7 | Large or bold text, headings |
| #5BB0B5 text on white | 2.52:1 | Fails | Lc 49.3 | Large or bold text, headings |
| #5BB0B5 text on black | 8.32:1 | AAA | Lc -52.6 | 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
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C4DFE1
oklch(88.4% 0.029 202.1)
-
Step 300
300
#9ACBCE
oklch(80.9% 0.051 200.9)
-
Step 400
400 (this color)
#5BB0B5
oklch(70.6% 0.083 200.5)
-
Step 500
500
#0C9CA3
oklch(63.1% 0.106 200.5)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006F74
oklch(49.2% 0.084 200.3)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#032D2F
oklch(27.1% 0.044 199.7)
#5BB0B5 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) | #A5A9B5 | 0.084 |
| Deuteranopia (no green cones) | #969EB6 | 0.078 |
| Tritanopia (no blue cones) | #21B5B1 | 0.036 |
| Achromatopsia (no color) | #A3A3A3 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB0B5
#5BB0B5
oklch(70.6% 0.083 200.5)
- #CF8C8A
#CF8C8A
oklch(70.7% 0.082 21.2)
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 #5BB0B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.040
- Turquoise Blue #06B1C4 ΔE 0.040
- Topaz #13BBAF ΔE 0.047
- Greyblue #77A1B5 ΔE 0.048
- Cadet Blue #5F9EA0 ΔE 0.052
- Bluegrey #85A3B2 ΔE 0.052
- Greeny Blue #42B395 ΔE 0.056
- Bluey Grey #89A0B0 ΔE 0.060
Use #5BB0B5 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.