#557370
Closest named color: Dim Gray (#696969). oklch(53.1% 0.035 188.5), rgb(85, 115, 112).
Aa
White text reads best on this color (5.15:1).
About this color
#557370 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.035 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.037 away. White text reads best on it, at 5.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dim Gray (#696969) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #557370 |
| RGB | rgb(85, 115, 112) |
| HSL | hsl(174, 15%, 39%) |
| OKLCH | oklch(53.1% 0.035 188.5) |
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 #557370 | 5.15:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #557370 | 4.07:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #557370 text on white | 5.15:1 | AA | Lc 75.5 | Fine for body text |
| #557370 text on black | 4.07:1 | AA large text | Lc -26.2 | 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
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D3DBDA
oklch(88.5% 0.009 188.1)
-
Step 300
300
#B6C4C2
oklch(80.9% 0.016 186.6)
-
Step 400
400
#90A6A3
oklch(70.7% 0.025 186.6)
-
Step 500
500
#74908D
oklch(63.1% 0.032 188.4)
-
Step 600
600 (this color)
#557370
oklch(53.1% 0.035 188.5)
-
Step 700
700
#4C6764
oklch(49.1% 0.032 187.7)
-
Step 800
800
#3E5452
oklch(42.7% 0.027 189.3)
-
Step 900
900
#354544
oklch(37.6% 0.021 191.6)
-
Step 950
950
#1F2928
oklch(27.1% 0.014 188.9)
#557370 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) | #707070 | 0.038 |
| Deuteranopia (no green cones) | #6A6B70 | 0.036 |
| Tritanopia (no blue cones) | #4C7572 | 0.011 |
| Achromatopsia (no color) | #6D6D6D | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557370
#557370
oklch(53.1% 0.035 188.5)
- #7F6468
#7F6468
oklch(53.1% 0.035 8.4)
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 #557370, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.037
- Battleship Gray #6C757D ΔE 0.039
- Slate #516572 ΔE 0.045
- Metallic Blue #4F738E ΔE 0.048
- Battleship Grey #6B7C85 ΔE 0.050
- Deep Aqua #08787F ΔE 0.055
- Grey Blue #647D8E ΔE 0.055
- Bluegreen #017A79 ΔE 0.055
Use #557370 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.