#537783
Closest named color: Metallic Blue (#4F738E). oklch(54.7% 0.045 220.6), rgb(83, 119, 131).
Aa
White text reads best on this color (4.84:1).
About this color
#537783 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.045 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.025 away. White text reads best on it, at 4.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.33:1 |
| White text | 4.84:1 |
Values
| HEX | #537783 |
| RGB | rgb(83, 119, 131) |
| HSL | hsl(195, 22%, 42%) |
| OKLCH | oklch(54.7% 0.045 220.6) |
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 #537783 | 4.84:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #537783 | 4.33:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #537783 text on white | 4.84:1 | AA | Lc 73.6 | Content text, not long reading |
| #537783 text on black | 4.33:1 | AA large text | Lc -28.1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B3C4CA
oklch(80.9% 0.02 220.9)
-
Step 400
400
#8BA6AF
oklch(70.8% 0.033 220)
-
Step 500
500
#6E909B
oklch(63.2% 0.041 219.7)
-
Step 600
600 (this color)
#537783
oklch(54.7% 0.045 220.6)
-
Step 700
700
#466671
oklch(49% 0.041 221.3)
-
Step 800
800
#3A545C
oklch(42.8% 0.034 218.9)
-
Step 900
900
#32454C
oklch(37.7% 0.027 222.6)
-
Step 950
950
#1D282C
oklch(26.8% 0.017 222.1)
#537783 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) | #707584 | 0.039 |
| Deuteranopia (no green cones) | #686F83 | 0.034 |
| Tritanopia (no blue cones) | #427B7B | 0.027 |
| Achromatopsia (no color) | #727272 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537783
#537783
oklch(54.7% 0.045 220.6)
- #88685D
#88685D
oklch(54.6% 0.045 39.8)
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 #537783, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.025
- Battleship Gray #6C757D ΔE 0.032
- Grey Blue #647D8E ΔE 0.033
- Battleship Grey #6B7C85 ΔE 0.036
- Stormy Blue #507B9C ΔE 0.038
- Cerulean #457B9D ΔE 0.040
- Dull Blue #49759C ΔE 0.043
- Slate Gray #708090 ΔE 0.051
Use #537783 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.