#5F8B91
Closest named color: Steel Grey (#6F828A). oklch(60.7% 0.049 206.6), rgb(95, 139, 145).
Aa
Black text reads best on this color (5.58:1).
About this color
#5F8B91 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.049 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.029 away. Black text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #5F8B91 |
| RGB | rgb(95, 139, 145) |
| HSL | hsl(187, 21%, 47%) |
| OKLCH | oklch(60.7% 0.049 206.6) |
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 #5F8B91 | 3.75:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #5F8B91 | 5.58:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #5F8B91 text on white | 3.75:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #5F8B91 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDD
oklch(88.6% 0.013 202.9)
-
Step 300
300
#B0C5C8
oklch(80.8% 0.023 207.1)
-
Step 400
400
#85A8AD
oklch(70.7% 0.039 207)
-
Step 500
500 (this color)
#5F8B91
oklch(60.7% 0.049 206.6)
-
Step 600
600
#4C7C83
oklch(55.5% 0.053 207.5)
-
Step 700
700
#3D696F
oklch(49.1% 0.05 206.8)
-
Step 800
800
#33565A
oklch(42.8% 0.041 205)
-
Step 900
900
#2D474A
oklch(37.8% 0.032 205)
-
Step 950
950
#1B292B
oklch(26.9% 0.019 207.1)
#5F8B91 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) | #848791 | 0.048 |
| Deuteranopia (no green cones) | #7B8191 | 0.044 |
| Tritanopia (no blue cones) | #4D8F8D | 0.023 |
| Achromatopsia (no color) | #848484 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F8B91
#5F8B91
oklch(60.7% 0.049 206.6)
- #9E7773
#9E7773
oklch(60.6% 0.05 25.3)
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 #5F8B91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.029
- Steel #738595 ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.034
- Light Slate Gray #778899 ΔE 0.035
- Slate Gray #708090 ΔE 0.036
- Grey Blue #647D8E ΔE 0.040
- Blue Grey #758DA3 ΔE 0.041
- Battleship Grey #6B7C85 ΔE 0.042
Use #5F8B91 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.