#427870
Closest named color: Bluegreen (#017A79). oklch(53.3% 0.059 183.4), rgb(66, 120, 112).
Aa
White text reads best on this color (5.05:1).
About this color
#427870 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.059 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.034 away. White text reads best on it, at 5.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #427870 |
| RGB | rgb(66, 120, 112) |
| HSL | hsl(171, 29%, 36%) |
| OKLCH | oklch(53.3% 0.059 183.4) |
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 #427870 | 5.05:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #427870 | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #427870 text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #427870 text on black | 4.15:1 | AA large text | Lc -26.9 | 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
#E5ECEA
oklch(93.7% 0.008 177.3)
-
Step 200
200
#CFDCDA
oklch(88.4% 0.014 185.9)
-
Step 300
300
#AFC7C2
oklch(81% 0.027 181.7)
-
Step 400
400
#83AAA3
oklch(70.7% 0.044 182.8)
-
Step 500
500
#63958D
oklch(63.2% 0.055 183.4)
-
Step 600
600 (this color)
#427870
oklch(53.3% 0.059 183.4)
-
Step 700
700
#3A6B64
oklch(49.1% 0.055 183.8)
-
Step 800
800
#305751
oklch(42.6% 0.046 183.2)
-
Step 900
900
#2B4843
oklch(37.7% 0.036 182.2)
-
Step 950
950
#1A2A27
oklch(27% 0.022 181.6)
#427870 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) | #737370 | 0.062 |
| Deuteranopia (no green cones) | #6A6C71 | 0.059 |
| Tritanopia (no blue cones) | #2C7A75 | 0.018 |
| Achromatopsia (no color) | #6F6F6F | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427870
#427870
oklch(53.3% 0.059 183.4)
- #8A5E69
#8A5E69
oklch(53.2% 0.059 2.9)
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 #427870, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.034
- Deep Aqua #08787F ΔE 0.038
- Teal #008080 ΔE 0.038
- Dark Aquamarine #017371 ΔE 0.042
- Deep Turquoise #017374 ΔE 0.042
- Ocean #017B92 ΔE 0.057
- Metallic Blue #4F738E ΔE 0.058
- Battleship Gray #6C757D ΔE 0.059
Use #427870 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.