#537678
Closest named color: Battleship Gray (#6C757D). oklch(54% 0.04 200.5), rgb(83, 118, 120).
Aa
White text reads best on this color (4.96:1).
About this color
#537678 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.040 and its hue 201°. 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 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.23:1 |
| White text | 4.96:1 |
Values
| HEX | #537678 |
| RGB | rgb(83, 118, 120) |
| HSL | hsl(183, 18%, 40%) |
| OKLCH | oklch(54% 0.04 200.5) |
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 #537678 | 4.96:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #537678 | 4.23:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #537678 text on white | 4.96:1 | AA | Lc 74.3 | Content text, not long reading |
| #537678 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
#D2DBDC
oklch(88.5% 0.01 204.9)
-
Step 300
300
#B4C4C5
oklch(80.8% 0.018 201.3)
-
Step 400
400
#8DA6A8
oklch(70.7% 0.028 202.5)
-
Step 500
500
#709192
oklch(63.2% 0.037 198.6)
-
Step 600
600 (this color)
#537678
oklch(54% 0.04 200.5)
-
Step 700
700
#476769
oklch(49% 0.037 200.9)
-
Step 800
800
#3B5456
oklch(42.6% 0.03 202.3)
-
Step 900
900
#334647
oklch(37.8% 0.024 200.2)
-
Step 950
950
#1E2929
oklch(27.1% 0.015 196.3)
#537678 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) | #717378 | 0.041 |
| Deuteranopia (no green cones) | #6A6E78 | 0.037 |
| Tritanopia (no blue cones) | #467976 | 0.017 |
| Achromatopsia (no color) | #707070 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537678
#537678
oklch(54% 0.04 200.5)
- #856665
#856665
oklch(54.1% 0.04 20.6)
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 #537678, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.035
- Metallic Blue #4F738E ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.042
- Grey Blue #647D8E ΔE 0.044
- Dim Gray #696969 ΔE 0.044
- Slate #516572 ΔE 0.051
- Deep Aqua #08787F ΔE 0.051
- Bluegreen #017A79 ΔE 0.053
Use #537678 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.