#5BA1BC
Closest named color: Greyblue (#77A1B5). oklch(67.3% 0.081 225.1), rgb(91, 161, 188).
Aa
Black text reads best on this color (7.26:1).
About this color
#5BA1BC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.081 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.030 away. Black text reads best on it, at 7.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.26:1 |
| White text | 2.88:1 |
Values
| HEX | #5BA1BC |
| RGB | rgb(91, 161, 188) |
| HSL | hsl(197, 42%, 55%) |
| OKLCH | oklch(67.3% 0.081 225.1) |
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 #5BA1BC | 2.88:1 | Fails | Lc -60.3 | Content text, not long reading |
| Black text on #5BA1BC | 7.26:1 | AAA | Lc 49.0 | Large or bold text, headings |
| #5BA1BC text on white | 2.88:1 | Fails | Lc 55.0 | Large or bold text, headings |
| #5BA1BC text on black | 7.26:1 | AAA | Lc -46.8 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE7
oklch(88.6% 0.028 222.3)
-
Step 300
300
#9EC8DA
oklch(80.9% 0.051 225.9)
-
Step 400
400 (this color)
#5BA1BC
oklch(67.3% 0.081 225.1)
-
Step 500
500
#3196B9
oklch(63.1% 0.104 225.5)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#09495C
oklch(37.8% 0.067 224)
-
Step 950
950
#0A2B36
oklch(27.1% 0.042 224)
#5BA1BC 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) | #929EBD | 0.063 |
| Deuteranopia (no green cones) | #8493BC | 0.057 |
| Tritanopia (no blue cones) | #20A9AA | 0.055 |
| Achromatopsia (no color) | #989898 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BA1BC
#5BA1BC
oklch(67.3% 0.081 225.1)
- #C1876C
#C1876C
oklch(67.5% 0.081 45.9)
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 #5BA1BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.030
- Cadet Blue #5F9EA0 ΔE 0.040
- Bluegrey #85A3B2 ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.052
- Turquoise Blue #06B1C4 ΔE 0.053
- Cool Gray #8D99AE ΔE 0.058
- Silver Lake Blue #778DA9 ΔE 0.058
- Faded Blue #658CBB ΔE 0.059
Use #5BA1BC 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.