#557675
Closest named color: Battleship Gray (#6C757D). oklch(54% 0.038 193.7), rgb(85, 118, 117).
Aa
White text reads best on this color (4.95:1).
About this color
#557675 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.038 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.035 away. White text reads best on it, at 4.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #557675 |
| RGB | rgb(85, 118, 117) |
| HSL | hsl(178, 16%, 40%) |
| OKLCH | oklch(54% 0.038 193.7) |
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 #557675 | 4.95:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #557675 | 4.23:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #557675 text on white | 4.95:1 | AA | Lc 74.3 | Content text, not long reading |
| #557675 text on black | 4.23:1 | AA large text | Lc -27.4 | 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
#D2DBDB
oklch(88.5% 0.01 197)
-
Step 300
300
#B5C4C4
oklch(80.9% 0.016 196.8)
-
Step 400
400
#8EA6A5
oklch(70.6% 0.027 193.5)
-
Step 500
500
#72908F
oklch(63% 0.034 193.8)
-
Step 600
600 (this color)
#557675
oklch(54% 0.038 193.7)
-
Step 700
700
#496766
oklch(49% 0.035 193.5)
-
Step 800
800
#3C5453
oklch(42.6% 0.029 192.9)
-
Step 900
900
#344645
oklch(37.8% 0.023 192)
-
Step 950
950
#1E2928
oklch(27% 0.015 189.4)
#557675 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) | #727375 | 0.040 |
| Deuteranopia (no green cones) | #6C6E75 | 0.037 |
| Tritanopia (no blue cones) | #4A7876 | 0.013 |
| Achromatopsia (no color) | #707070 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557675
#557675
oklch(54% 0.038 193.7)
- #836668
#836668
oklch(54% 0.037 13.8)
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 #557675, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.035
- Battleship Grey #6B7C85 ΔE 0.042
- Dim Gray #696969 ΔE 0.042
- Metallic Blue #4F738E ΔE 0.044
- Grey Blue #647D8E ΔE 0.046
- Slate #516572 ΔE 0.052
- Deep Aqua #08787F ΔE 0.053
- Bluegreen #017A79 ΔE 0.054
Use #557675 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.