#577982
Closest named color: Grey Blue (#647D8E). oklch(55.4% 0.041 215.9), rgb(87, 121, 130).
Aa
White text reads best on this color (4.70:1).
About this color
#577982 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.041 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.027 away. White text reads best on it, at 4.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.46:1 |
| White text | 4.70:1 |
Values
| HEX | #577982 |
| RGB | rgb(87, 121, 130) |
| HSL | hsl(193, 20%, 43%) |
| OKLCH | oklch(55.4% 0.041 215.9) |
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 #577982 | 4.70:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #577982 | 4.46:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #577982 text on white | 4.70:1 | AA | Lc 72.6 | Content text, not long reading |
| #577982 text on black | 4.46:1 | AA large text | Lc -29.0 | Dividers and decoration only |
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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B4C4C8
oklch(80.9% 0.018 214.4)
-
Step 400
400
#8DA6AC
oklch(70.8% 0.029 213.8)
-
Step 500
500
#709098
oklch(63.2% 0.038 214.7)
-
Step 600
600 (this color)
#577982
oklch(55.4% 0.041 215.9)
-
Step 700
700
#48666F
oklch(49% 0.038 218.4)
-
Step 800
800
#3B545A
oklch(42.8% 0.032 214.2)
-
Step 900
900
#33454A
oklch(37.7% 0.024 216.7)
-
Step 950
950
#1E282B
oklch(26.9% 0.015 218)
#577982 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) | #737783 | 0.038 |
| Deuteranopia (no green cones) | #6C7182 | 0.035 |
| Tritanopia (no blue cones) | #487D7C | 0.024 |
| Achromatopsia (no color) | #747474 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577982
#577982
oklch(55.4% 0.041 215.9)
- #896A62
#896A62
oklch(55.3% 0.042 34.9)
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 #577982, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.027
- Battleship Gray #6C757D ΔE 0.028
- Battleship Grey #6B7C85 ΔE 0.029
- Metallic Blue #4F738E ΔE 0.032
- Stormy Blue #507B9C ΔE 0.040
- Cerulean #457B9D ΔE 0.043
- Steel Grey #6F828A ΔE 0.044
- Slate Gray #708090 ΔE 0.045
Use #577982 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.