#427D71
Closest named color: Teal (#008080). oklch(54.6% 0.065 179), rgb(66, 125, 113).
Aa
White text reads best on this color (4.76:1).
About this color
#427D71 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.065 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.035 away. White text reads best on it, at 4.76:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #427D71 |
| RGB | rgb(66, 125, 113) |
| HSL | hsl(168, 31%, 37%) |
| OKLCH | oklch(54.6% 0.065 179) |
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 #427D71 | 4.76:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #427D71 | 4.40:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #427D71 text on white | 4.76:1 | AA | Lc 73.0 | Content text, not long reading |
| #427D71 text on black | 4.40:1 | AA large text | Lc -28.7 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ADC7C1
oklch(80.8% 0.029 180.1)
-
Step 400
400
#81ABA1
oklch(70.8% 0.048 178.6)
-
Step 500
500
#60968A
oklch(63.2% 0.06 178.6)
-
Step 600
600 (this color)
#427D71
oklch(54.6% 0.065 179)
-
Step 700
700
#366C61
oklch(49.1% 0.061 178.7)
-
Step 800
800
#2E584F
oklch(42.7% 0.05 178.3)
-
Step 900
900
#294942
oklch(37.8% 0.04 178.5)
-
Step 950
950
#192A27
oklch(26.9% 0.023 182.2)
#427D71 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) | #797771 | 0.069 |
| Deuteranopia (no green cones) | #6F7072 | 0.065 |
| Tritanopia (no blue cones) | #2A7F79 | 0.019 |
| Achromatopsia (no color) | #737373 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427D71
#427D71
oklch(54.6% 0.065 179)
- #90606F
#90606F
oklch(54.5% 0.066 359.2)
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 #427D71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.035
- Bluegreen #017A79 ΔE 0.038
- Deep Aqua #08787F ΔE 0.044
- Dark Cyan #008B8B ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.052
- Deep Turquoise #017374 ΔE 0.052
- Dark Sage #598556 ΔE 0.057
- Dusty Teal #4C9085 ΔE 0.060
Use #427D71 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.