#5B8A9C
Closest named color: Steel (#738595). oklch(60.7% 0.058 224.1), rgb(91, 138, 156).
Aa
Black text reads best on this color (5.56:1).
About this color
#5B8A9C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.058 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.030 away. Black text reads best on it, at 5.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.56:1 |
| White text | 3.77:1 |
Values
| HEX | #5B8A9C |
| RGB | rgb(91, 138, 156) |
| HSL | hsl(197, 26%, 48%) |
| OKLCH | oklch(60.7% 0.058 224.1) |
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 #5B8A9C | 3.77:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #5B8A9C | 5.56:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #5B8A9C text on white | 3.77:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #5B8A9C text on black | 5.56:1 | AA | Lc -36.4 | 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
#CFDCE1
oklch(88.6% 0.016 222.7)
-
Step 300
300
#AEC5CE
oklch(80.9% 0.028 223.3)
-
Step 400
400
#83A7B6
oklch(70.7% 0.045 225.3)
-
Step 500
500 (this color)
#5B8A9C
oklch(60.7% 0.058 224.1)
-
Step 600
600
#487B8F
oklch(55.5% 0.063 225.2)
-
Step 700
700
#396879
oklch(49.1% 0.058 223.6)
-
Step 800
800
#305563
oklch(42.8% 0.048 224.4)
-
Step 900
900
#2B4651
oklch(37.7% 0.038 225.7)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#5B8A9C 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) | #80889D | 0.046 |
| Deuteranopia (no green cones) | #76809C | 0.042 |
| Tritanopia (no blue cones) | #419090 | 0.038 |
| Achromatopsia (no color) | #838383 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8A9C
#5B8A9C
oklch(60.7% 0.058 224.1)
- #A07766
#A07766
oklch(60.5% 0.058 43.5)
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 #5B8A9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.030
- Dusty Blue #5A86AD ΔE 0.032
- Light Slate Gray #778899 ΔE 0.034
- Steel Grey #6F828A ΔE 0.035
- Slate Gray #708090 ΔE 0.035
- Blue Grey #758DA3 ΔE 0.035
- Grey Blue #647D8E ΔE 0.037
- Off Blue #5684AE ΔE 0.038
Use #5B8A9C 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.