#427173
Closest named color: Deep Aqua (#08787F). oklch(51.6% 0.051 199.2), rgb(66, 113, 115).
Aa
White text reads best on this color (5.46:1).
About this color
#427173 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.051 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.036 away. White text reads best on it, at 5.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.84:1 |
| White text | 5.46:1 |
Values
| HEX | #427173 |
| RGB | rgb(66, 113, 115) |
| HSL | hsl(182, 27%, 35%) |
| OKLCH | oklch(51.6% 0.051 199.2) |
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 #427173 | 5.46:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #427173 | 3.84:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #427173 text on white | 5.46:1 | AA | Lc 77.2 | Fine for body text |
| #427173 text on black | 3.84:1 | AA large text | Lc -24.6 | 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
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AFC6C7
oklch(81% 0.025 199.9)
-
Step 400
400
#84A9AA
oklch(70.8% 0.04 198.3)
-
Step 500
500
#649395
oklch(63% 0.051 199.3)
-
Step 600
600
#4A7D80
oklch(55.5% 0.055 200.5)
-
Step 700
700 (this color)
#427173
oklch(51.6% 0.051 199.2)
-
Step 800
800
#315658
oklch(42.6% 0.043 200.1)
-
Step 900
900
#2C4748
oklch(37.7% 0.033 198.8)
-
Step 950
950
#1A2A2A
oklch(27.1% 0.021 196)
#427173 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) | #6B6D73 | 0.053 |
| Deuteranopia (no green cones) | #626773 | 0.048 |
| Tritanopia (no blue cones) | #2C7471 | 0.021 |
| Achromatopsia (no color) | #696969 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427173
#427173
oklch(51.6% 0.051 199.2)
- #835C5C
#835C5C
oklch(51.6% 0.052 19)
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 #427173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.036
- Deep Turquoise #017374 ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.038
- Slate #516572 ΔE 0.039
- Bluegreen #017A79 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.047
- Teal #008080 ΔE 0.050
- Dark Aqua #05696B ΔE 0.051
Use #427173 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.