#56757F
Closest named color: Metallic Blue (#4F738E). oklch(54.2% 0.039 219.7), rgb(86, 117, 127).
Aa
White text reads best on this color (4.94:1).
About this color
#56757F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.039 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.027 away. White text reads best on it, at 4.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #56757F |
| RGB | rgb(86, 117, 127) |
| HSL | hsl(195, 19%, 42%) |
| OKLCH | oklch(54.2% 0.039 219.7) |
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 #56757F | 4.94:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #56757F | 4.24:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #56757F text on white | 4.94:1 | AA | Lc 74.2 | Content text, not long reading |
| #56757F text on black | 4.24:1 | AA large text | Lc -27.5 | 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
#B5C3C8
oklch(80.8% 0.017 221.1)
-
Step 400
400
#8EA5AD
oklch(70.7% 0.028 220.8)
-
Step 500
500
#728F98
oklch(63.1% 0.035 218.7)
-
Step 600
600 (this color)
#56757F
oklch(54.2% 0.039 219.7)
-
Step 700
700
#4A666F
oklch(49.2% 0.036 219.7)
-
Step 800
800
#3D535A
oklch(42.7% 0.029 219.4)
-
Step 900
900
#34454A
oklch(37.8% 0.023 217.7)
-
Step 950
950
#1F282B
oklch(26.9% 0.014 220.1)
#56757F 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) | #6F7380 | 0.034 |
| Deuteranopia (no green cones) | #686E7F | 0.030 |
| Tritanopia (no blue cones) | #487978 | 0.025 |
| Achromatopsia (no color) | #707070 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #56757F
#56757F
oklch(54.2% 0.039 219.7)
- #84685F
#84685F
oklch(54.2% 0.039 38.6)
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 #56757F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.027
- Battleship Gray #6C757D ΔE 0.029
- Grey Blue #647D8E ΔE 0.036
- Battleship Grey #6B7C85 ΔE 0.037
- Stormy Blue #507B9C ΔE 0.044
- Dim Gray #696969 ΔE 0.044
- Cerulean #457B9D ΔE 0.046
- Dull Blue #49759C ΔE 0.047
Use #56757F 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.