#427478
Closest named color: Deep Aqua (#08787F). oklch(52.5% 0.054 202.3), rgb(66, 116, 120).
Aa
White text reads best on this color (5.24:1).
About this color
#427478 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.054 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.033 away. White text reads best on it, at 5.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #427478 |
| RGB | rgb(66, 116, 120) |
| HSL | hsl(184, 29%, 36%) |
| OKLCH | oklch(52.5% 0.054 202.3) |
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 #427478 | 5.24:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #427478 | 4.00:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #427478 text on white | 5.24:1 | AA | Lc 76.0 | Fine for body text |
| #427478 text on black | 4.00:1 | AA large text | Lc -25.8 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AFC6C7
oklch(81% 0.025 199.9)
-
Step 400
400
#85A8AB
oklch(70.7% 0.038 202.8)
-
Step 500
500
#659396
oklch(63.1% 0.05 201.1)
-
Step 600
600 (this color)
#427478
oklch(52.5% 0.054 202.3)
-
Step 700
700
#3C696D
oklch(49% 0.05 203)
-
Step 800
800
#325659
oklch(42.7% 0.042 202.5)
-
Step 900
900
#2C4749
oklch(37.7% 0.033 201.8)
-
Step 950
950
#1A2A2B
oklch(27.1% 0.021 200.9)
#427478 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) | #6D7078 | 0.054 |
| Deuteranopia (no green cones) | #646978 | 0.051 |
| Tritanopia (no blue cones) | #287775 | 0.024 |
| Achromatopsia (no color) | #6C6C6C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427478
#427478
oklch(52.5% 0.054 202.3)
- #875E5C
#875E5C
oklch(52.5% 0.054 22.2)
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 #427478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.033
- Bluegreen #017A79 ΔE 0.037
- Deep Turquoise #017374 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.041
- Metallic Blue #4F738E ΔE 0.041
- Teal #008080 ΔE 0.043
- Slate #516572 ΔE 0.045
- Ocean #017B92 ΔE 0.047
Use #427478 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.