#577777
Closest named color: Battleship Gray (#6C757D). oklch(54.5% 0.037 196.1), rgb(87, 119, 119).
Aa
White text reads best on this color (4.87:1).
About this color
#577777 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.037 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.031 away. White text reads best on it, at 4.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.31:1 |
| White text | 4.87:1 |
Values
| HEX | #577777 |
| RGB | rgb(87, 119, 119) |
| HSL | hsl(180, 16%, 40%) |
| OKLCH | oklch(54.5% 0.037 196.1) |
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 #577777 | 4.87:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #577777 | 4.31:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #577777 text on white | 4.87:1 | AA | Lc 73.8 | Content text, not long reading |
| #577777 text on black | 4.31:1 | AA large text | Lc -27.9 | 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
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B5C4C4
oklch(80.9% 0.016 196.8)
-
Step 400
400
#8EA6A6
oklch(70.7% 0.027 196.6)
-
Step 500
500
#729090
oklch(63% 0.034 196.3)
-
Step 600
600 (this color)
#577777
oklch(54.5% 0.037 196.1)
-
Step 700
700
#4A6767
oklch(49.1% 0.034 196.1)
-
Step 800
800
#3D5454
oklch(42.7% 0.028 196.2)
-
Step 900
900
#344545
oklch(37.6% 0.022 196.3)
-
Step 950
950
#1F2929
oklch(27.1% 0.014 196.4)
#577777 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) | #737477 | 0.038 |
| Deuteranopia (no green cones) | #6D6F77 | 0.036 |
| Tritanopia (no blue cones) | #4C7977 | 0.013 |
| Achromatopsia (no color) | #717171 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577777
#577777
oklch(54.5% 0.037 196.1)
- #846869
#846869
oklch(54.5% 0.036 15.9)
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 #577777, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.031
- Battleship Grey #6B7C85 ΔE 0.038
- Grey Blue #647D8E ΔE 0.042
- Metallic Blue #4F738E ΔE 0.043
- Dim Gray #696969 ΔE 0.044
- Steel Grey #6F828A ΔE 0.053
- Slate #516572 ΔE 0.055
- Deep Aqua #08787F ΔE 0.056
Use #577777 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.