#557171
Closest named color: Dim Gray (#696969). oklch(52.7% 0.033 196.2), rgb(85, 113, 113).
Aa
White text reads best on this color (5.26:1).
About this color
#557171 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.033 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.033 away. White text reads best on it, at 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #557171 |
| RGB | rgb(85, 113, 113) |
| HSL | hsl(180, 14%, 39%) |
| OKLCH | oklch(52.7% 0.033 196.2) |
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 #557171 | 5.26:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #557171 | 3.98:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #557171 text on white | 5.26:1 | AA | Lc 76.2 | Fine for body text |
| #557171 text on black | 3.98:1 | AA large text | Lc -25.6 | 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
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDB
oklch(88.5% 0.009 197)
-
Step 300
300
#B6C4C4
oklch(81% 0.015 196.9)
-
Step 400
400
#90A5A5
oklch(70.6% 0.024 196.6)
-
Step 500
500
#758F8F
oklch(63% 0.03 196.4)
-
Step 600
600 (this color)
#557171
oklch(52.7% 0.033 196.2)
-
Step 700
700
#4D6666
oklch(49% 0.03 196.2)
-
Step 800
800
#3F5353
oklch(42.6% 0.025 196.3)
-
Step 900
900
#364545
oklch(37.7% 0.019 196.4)
-
Step 950
950
#202828
oklch(26.9% 0.011 196.5)
#557171 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) | #6D6E71 | 0.034 |
| Deuteranopia (no green cones) | #686A71 | 0.032 |
| Tritanopia (no blue cones) | #4C7371 | 0.012 |
| Achromatopsia (no color) | #6C6C6C | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557171
#557171
oklch(52.7% 0.033 196.2)
- #7D6464
#7D6464
oklch(52.8% 0.032 18.2)
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 #557171, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.033
- Slate #516572 ΔE 0.039
- Battleship Gray #6C757D ΔE 0.040
- Metallic Blue #4F738E ΔE 0.045
- Battleship Grey #6B7C85 ΔE 0.052
- Deep Aqua #08787F ΔE 0.055
- Grey Blue #647D8E ΔE 0.056
- Bluegreen #017A79 ΔE 0.057
Use #557171 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.