#5B8A9F
Closest named color: Dusty Blue (#5A86AD). oklch(60.8% 0.06 227.9), rgb(91, 138, 159).
Aa
Black text reads best on this color (5.58:1).
About this color
#5B8A9F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.060 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.028 away. Black text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.58:1 |
| White text | 3.76:1 |
Values
| HEX | #5B8A9F |
| RGB | rgb(91, 138, 159) |
| HSL | hsl(199, 27%, 49%) |
| OKLCH | oklch(60.8% 0.06 227.9) |
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 #5B8A9F | 3.76:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #5B8A9F | 5.58:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #5B8A9F text on white | 3.76:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #5B8A9F text on black | 5.58:1 | AA | Lc -36.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AEC5D0
oklch(81% 0.029 228.2)
-
Step 400
400
#82A7B8
oklch(70.7% 0.047 227.7)
-
Step 500
500 (this color)
#5B8A9F
oklch(60.8% 0.06 227.9)
-
Step 600
600
#477B91
oklch(55.5% 0.065 227.2)
-
Step 700
700
#39687C
oklch(49.2% 0.06 227.6)
-
Step 800
800
#2F5565
oklch(42.8% 0.051 227.1)
-
Step 900
900
#2A4652
oklch(37.7% 0.04 227)
-
Step 950
950
#192930
oklch(27% 0.025 227.2)
#5B8A9F 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) | #7F88A0 | 0.045 |
| Deuteranopia (no green cones) | #75809F | 0.041 |
| Tritanopia (no blue cones) | #3F9091 | 0.042 |
| Achromatopsia (no color) | #848484 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8A9F
#5B8A9F
oklch(60.8% 0.06 227.9)
- #A17863
#A17863
oklch(60.8% 0.06 48.3)
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 #5B8A9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.028
- Steel #738595 ΔE 0.031
- Off Blue #5684AE ΔE 0.034
- Light Slate Gray #778899 ΔE 0.034
- Blue Grey #758DA3 ΔE 0.034
- Slate Gray #708090 ΔE 0.036
- Steel Grey #6F828A ΔE 0.037
- Grey Blue #647D8E ΔE 0.039
Use #5B8A9F 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.