#42847F
Closest named color: Dark Cyan (#008B8B). oklch(56.9% 0.068 188.9), rgb(66, 132, 127).
Aa
Black text reads best on this color (4.83:1).
About this color
#42847F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.068 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.033 away. Black text reads best on it, at 4.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #42847F |
| RGB | rgb(66, 132, 127) |
| HSL | hsl(175, 33%, 39%) |
| OKLCH | oklch(56.9% 0.068 188.9) |
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 #42847F | 4.34:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #42847F | 4.83:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #42847F text on white | 4.34:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #42847F text on black | 4.83:1 | AA | Lc -31.8 | Non-text elements, placeholder text |
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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CDDDDB
oklch(88.5% 0.017 187.8)
-
Step 300
300
#ABC7C4
oklch(80.8% 0.03 188.7)
-
Step 400
400
#7EABA7
oklch(70.8% 0.049 189.3)
-
Step 500
500
#5B9691
oklch(63.1% 0.062 188.8)
-
Step 600
600 (this color)
#42847F
oklch(56.9% 0.068 188.9)
-
Step 700
700
#2F6C68
oklch(49% 0.063 189.5)
-
Step 800
800
#295855
oklch(42.7% 0.052 189.9)
-
Step 900
900
#264946
oklch(37.8% 0.041 188.5)
-
Step 950
950
#172B29
oklch(27.1% 0.026 187.7)
#42847F 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) | #7E7E7F | 0.073 |
| Deuteranopia (no green cones) | #737680 | 0.068 |
| Tritanopia (no blue cones) | #1E8782 | 0.022 |
| Achromatopsia (no color) | #797979 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42847F
#42847F
oklch(56.9% 0.068 188.9)
- #9A666E
#9A666E
oklch(56.8% 0.068 9.4)
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 #42847F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.033
- Teal #008080 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.038
- Teal Green #0A9396 ΔE 0.049
- Bluegreen #017A79 ΔE 0.050
- Teal Blue #01889F ΔE 0.051
- Grey Blue #647D8E ΔE 0.052
- Battleship Grey #6B7C85 ΔE 0.053
Use #42847F 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.