#528389
Closest named color: Grey Blue (#647D8E). oklch(57.7% 0.054 205.6), rgb(82, 131, 137).
Aa
Black text reads best on this color (4.96:1).
About this color
#528389 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.054 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.029 away. Black text reads best on it, at 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.96:1 |
| White text | 4.22:1 |
Values
| HEX | #528389 |
| RGB | rgb(82, 131, 137) |
| HSL | hsl(187, 25%, 43%) |
| OKLCH | oklch(57.7% 0.054 205.6) |
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 #528389 | 4.22:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #528389 | 4.96:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #528389 text on white | 4.22:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #528389 text on black | 4.96:1 | AA | Lc -32.5 | 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 600.
-
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
#AFC5C8
oklch(80.8% 0.024 206.6)
-
Step 400
400
#85A8AC
oklch(70.7% 0.039 204.9)
-
Step 500
500
#669298
oklch(63% 0.049 206.6)
-
Step 600
600 (this color)
#528389
oklch(57.7% 0.054 205.6)
-
Step 700
700
#3C696E
oklch(49% 0.05 204.8)
-
Step 800
800
#32565A
oklch(42.8% 0.042 204.8)
-
Step 900
900
#2D474A
oklch(37.8% 0.032 205)
-
Step 950
950
#1A292B
oklch(26.8% 0.021 206.4)
#528389 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) | #7C7F89 | 0.053 |
| Deuteranopia (no green cones) | #727889 | 0.049 |
| Tritanopia (no blue cones) | #3B8785 | 0.025 |
| Achromatopsia (no color) | #7B7B7B | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #528389
#528389
oklch(57.7% 0.054 205.6)
- #976E69
#976E69
oklch(57.8% 0.053 26.7)
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 #528389, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.029
- Battleship Grey #6B7C85 ΔE 0.033
- Steel Grey #6F828A ΔE 0.035
- Slate Gray #708090 ΔE 0.040
- Dusty Teal #4C9085 ΔE 0.042
- Stormy Blue #507B9C ΔE 0.044
- Steel #738595 ΔE 0.047
- Battleship Gray #6C757D ΔE 0.047
Use #528389 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.