#507281
Closest named color: Metallic Blue (#4F738E). oklch(53.2% 0.045 227.2), rgb(80, 114, 129).
Aa
White text reads best on this color (5.16:1).
About this color
#507281 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.045 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.020 away. White text reads best on it, at 5.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.06:1 |
| White text | 5.16:1 |
Values
| HEX | #507281 |
| RGB | rgb(80, 114, 129) |
| HSL | hsl(198, 23%, 41%) |
| OKLCH | oklch(53.2% 0.045 227.2) |
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 #507281 | 5.16:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #507281 | 4.06:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #507281 text on white | 5.16:1 | AA | Lc 75.5 | Fine for body text |
| #507281 text on black | 4.06:1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B4C4CB
oklch(81% 0.02 225.8)
-
Step 400
400
#8CA5B1
oklch(70.7% 0.033 228.4)
-
Step 500
500
#6F8F9D
oklch(63.1% 0.042 226.5)
-
Step 600
600 (this color)
#507281
oklch(53.2% 0.045 227.2)
-
Step 700
700
#476674
oklch(49.2% 0.042 227.8)
-
Step 800
800
#3A535E
oklch(42.6% 0.035 227)
-
Step 900
900
#32454D
oklch(37.8% 0.028 225.7)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#507281 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) | #6A7082 | 0.035 |
| Deuteranopia (no green cones) | #636B81 | 0.031 |
| Tritanopia (no blue cones) | #3E7677 | 0.030 |
| Achromatopsia (no color) | #6D6D6D | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507281
#507281
oklch(53.2% 0.045 227.2)
- #836556
#836556
oklch(53.3% 0.045 47.9)
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 #507281, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.020
- Battleship Gray #6C757D ΔE 0.040
- Slate #516572 ΔE 0.040
- Dull Blue #49759C ΔE 0.041
- Stormy Blue #507B9C ΔE 0.044
- Cerulean #457B9D ΔE 0.044
- Grey Blue #647D8E ΔE 0.045
- Dim Gray #696969 ΔE 0.047
Use #507281 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.