#5BB2B8
Closest named color: Turquoise Blue (#06B1C4). oklch(71.2% 0.084 201.4), rgb(91, 178, 184).
Aa
Black text reads best on this color (8.50:1).
About this color
#5BB2B8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.084 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.040 away. Black text reads best on it, at 8.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.50:1 |
| White text | 2.46:1 |
Values
| HEX | #5BB2B8 |
| RGB | rgb(91, 178, 184) |
| HSL | hsl(184, 40%, 54%) |
| OKLCH | oklch(71.2% 0.084 201.4) |
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 #5BB2B8 | 2.46:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #5BB2B8 | 8.50:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #5BB2B8 text on white | 2.46:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #5BB2B8 text on black | 8.50:1 | AAA | Lc -53.6 | 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
#99CBCF
oklch(80.8% 0.052 202.3)
-
Step 400
400 (this color)
#5BB2B8
oklch(71.2% 0.084 201.4)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#022D2F
oklch(27.1% 0.045 199.6)
#5BB2B8 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) | #A7ABB9 | 0.086 |
| Deuteranopia (no green cones) | #98A0B9 | 0.080 |
| Tritanopia (no blue cones) | #1CB8B4 | 0.037 |
| Achromatopsia (no color) | #A5A5A5 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB2B8
#5BB2B8
oklch(71.2% 0.084 201.4)
- #D28D8B
#D28D8B
oklch(71.2% 0.085 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 #5BB2B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.040
- Light Sea Green #20B2AA ΔE 0.042
- Topaz #13BBAF ΔE 0.046
- Greyblue #77A1B5 ΔE 0.051
- Bluegrey #85A3B2 ΔE 0.054
- Cadet Blue #5F9EA0 ΔE 0.058
- Greeny Blue #42B395 ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.063
Use #5BB2B8 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.