#427379
Closest named color: Deep Aqua (#08787F). oklch(52.3% 0.054 205.7), rgb(66, 115, 121).
Aa
White text reads best on this color (5.30:1).
About this color
#427379 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.054 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.034 away. White text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.96:1 |
| White text | 5.30:1 |
Values
| HEX | #427379 |
| RGB | rgb(66, 115, 121) |
| HSL | hsl(187, 29%, 37%) |
| OKLCH | oklch(52.3% 0.054 205.7) |
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 #427379 | 5.30:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #427379 | 3.96:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #427379 text on white | 5.30:1 | AA | Lc 76.3 | Fine for body text |
| #427379 text on black | 3.96:1 | AA large text | Lc -25.5 | 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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AEC6C9
oklch(80.9% 0.026 205.8)
-
Step 400
400
#83A9AD
oklch(70.8% 0.042 204.3)
-
Step 500
500
#629399
oklch(63.1% 0.053 205.6)
-
Step 600
600
#487D84
oklch(55.6% 0.057 206.5)
-
Step 700
700 (this color)
#427379
oklch(52.3% 0.054 205.7)
-
Step 800
800
#2F565B
oklch(42.6% 0.045 206.2)
-
Step 900
900
#2B474B
oklch(37.7% 0.034 207.2)
-
Step 950
950
#192A2C
oklch(27.1% 0.023 205.2)
#427379 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) | #6C6F79 | 0.053 |
| Deuteranopia (no green cones) | #636879 | 0.050 |
| Tritanopia (no blue cones) | #287775 | 0.026 |
| Achromatopsia (no color) | #6B6B6B | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427379
#427379
oklch(52.3% 0.054 205.7)
- #865E5A
#865E5A
oklch(52.3% 0.053 25.4)
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 #427379, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.034
- Bluegreen #017A79 ΔE 0.038
- Metallic Blue #4F738E ΔE 0.039
- Deep Turquoise #017374 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.041
- Slate #516572 ΔE 0.042
- Teal #008080 ΔE 0.046
- Ocean #017B92 ΔE 0.046
Use #427379 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.