#427F82
Closest named color: Teal (#008080). oklch(55.7% 0.063 199.7), rgb(66, 127, 130).
Aa
Black text reads best on this color (4.58:1).
About this color
#427F82 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.063 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.033 away. Black text reads best on it, at 4.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #427F82 |
| RGB | rgb(66, 127, 130) |
| HSL | hsl(183, 33%, 38%) |
| OKLCH | oklch(55.7% 0.063 199.7) |
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 #427F82 | 4.57:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #427F82 | 4.58:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #427F82 text on white | 4.57:1 | AA | Lc 71.6 | Content text, not long reading |
| #427F82 text on black | 4.58:1 | AA | Lc -30.0 | Non-text elements, placeholder text |
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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CEDCDD
oklch(88.4% 0.015 202)
-
Step 300
300
#ACC7C8
oklch(81% 0.029 199.3)
-
Step 400
400
#7FAAAC
oklch(70.8% 0.046 199.7)
-
Step 500
500
#5D9497
oklch(63% 0.058 200.2)
-
Step 600
600 (this color)
#427F82
oklch(55.7% 0.063 199.7)
-
Step 700
700
#336B6E
oklch(49.1% 0.059 200.1)
-
Step 800
800
#2B5759
oklch(42.6% 0.049 199.4)
-
Step 900
900
#284849
oklch(37.7% 0.038 198.2)
-
Step 950
950
#182A2B
oklch(27% 0.024 200.3)
#427F82 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) | #777A82 | 0.064 |
| Deuteranopia (no green cones) | #6D7282 | 0.061 |
| Tritanopia (no blue cones) | #1D8380 | 0.027 |
| Achromatopsia (no color) | #757575 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427F82
#427F82
oklch(55.7% 0.063 199.7)
- #956564
#956564
oklch(55.7% 0.062 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 #427F82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.033
- Dark Cyan #008B8B ΔE 0.041
- Deep Aqua #08787F ΔE 0.042
- Bluegreen #017A79 ΔE 0.042
- Ocean #017B92 ΔE 0.044
- Grey Blue #647D8E ΔE 0.045
- Metallic Blue #4F738E ΔE 0.047
- Battleship Grey #6B7C85 ΔE 0.048
Use #427F82 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.