#579B8F
Closest named color: Grey Teal (#5E9B8A). oklch(64.1% 0.072 181.3), rgb(87, 155, 143).
Aa
Black text reads best on this color (6.49:1).
About this color
#579B8F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.072 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.009 away. Black text reads best on it, at 6.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.49:1 |
| White text | 3.23:1 |
Values
| HEX | #579B8F |
| RGB | rgb(87, 155, 143) |
| HSL | hsl(169, 28%, 47%) |
| OKLCH | oklch(64.1% 0.072 181.3) |
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 #579B8F | 3.23:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #579B8F | 6.49:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #579B8F text on white | 3.23:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #579B8F text on black | 6.49:1 | AA | Lc -42.2 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDEDA
oklch(88.6% 0.02 181.1)
-
Step 300
300
#A9C8C2
oklch(80.8% 0.034 182.4)
-
Step 400
400
#79ADA3
oklch(70.8% 0.057 181.3)
-
Step 500
500 (this color)
#579B8F
oklch(64.1% 0.072 181.3)
-
Step 600
600
#358276
oklch(55.5% 0.078 181.5)
-
Step 700
700
#276E63
oklch(49.1% 0.072 181.2)
-
Step 800
800
#225A51
oklch(42.8% 0.061 181.1)
-
Step 900
900
#224A43
oklch(37.8% 0.047 180.8)
-
Step 950
950
#152B27
oklch(26.9% 0.029 181)
#579B8F 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) | #96948F | 0.077 |
| Deuteranopia (no green cones) | #8A8B90 | 0.073 |
| Tritanopia (no blue cones) | #3C9D97 | 0.022 |
| Achromatopsia (no color) | #8F8F8F | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #579B8F
#579B8F
oklch(64.1% 0.072 181.3)
- #B27A89
#B27A89
oklch(64.1% 0.072 1.8)
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 #579B8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.009
- Dull Teal #5F9E8F ΔE 0.013
- Sea #3C9992 ΔE 0.024
- Cadet Blue #5F9EA0 ΔE 0.027
- Persian Green #2A9D8F ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.036
- Blue Green #0F9B8E ΔE 0.041
- Ocean Green #3D9973 ΔE 0.049
Use #579B8F 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.