#427D73
Closest named color: Teal (#008080). oklch(54.7% 0.064 181.6), rgb(66, 125, 115).
Aa
White text reads best on this color (4.75:1).
About this color
#427D73 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.064 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.034 away. White text reads best on it, at 4.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #427D73 |
| RGB | rgb(66, 125, 115) |
| HSL | hsl(170, 31%, 37%) |
| OKLCH | oklch(54.7% 0.064 181.6) |
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 #427D73 | 4.75:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #427D73 | 4.41:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #427D73 text on white | 4.75:1 | AA | Lc 72.9 | Content text, not long reading |
| #427D73 text on black | 4.41:1 | AA large text | Lc -28.8 | 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
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ADC7C2
oklch(80.9% 0.029 182.7)
-
Step 400
400
#81AAA2
oklch(70.6% 0.046 181.6)
-
Step 500
500
#60958C
oklch(63% 0.058 182.5)
-
Step 600
600 (this color)
#427D73
oklch(54.7% 0.064 181.6)
-
Step 700
700
#366C63
oklch(49.1% 0.06 181.6)
-
Step 800
800
#2D5851
oklch(42.7% 0.05 182.1)
-
Step 900
900
#294843
oklch(37.6% 0.038 182.8)
-
Step 950
950
#192A27
oklch(26.9% 0.023 182.2)
#427D73 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) | #787773 | 0.068 |
| Deuteranopia (no green cones) | #6E7074 | 0.064 |
| Tritanopia (no blue cones) | #297F7A | 0.019 |
| Achromatopsia (no color) | #737373 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427D73
#427D73
oklch(54.7% 0.064 181.6)
- #90616E
#90616E
oklch(54.7% 0.063 1.3)
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 #427D73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.034
- Bluegreen #017A79 ΔE 0.037
- Deep Aqua #08787F ΔE 0.043
- Dark Cyan #008B8B ΔE 0.049
- Dark Aquamarine #017371 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.052
- Ocean #017B92 ΔE 0.058
- Dusty Teal #4C9085 ΔE 0.059
Use #427D73 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.