#42817E
Closest named color: Teal (#008080). oklch(56.1% 0.065 191.4), rgb(66, 129, 126).
Aa
Black text reads best on this color (4.67:1).
About this color
#42817E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.065 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.033 away. Black text reads best on it, at 4.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #42817E |
| RGB | rgb(66, 129, 126) |
| HSL | hsl(177, 32%, 38%) |
| OKLCH | oklch(56.1% 0.065 191.4) |
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 #42817E | 4.49:1 | AA large text | Lc -76.5 | Fine for body text |
| Black text on #42817E | 4.67:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #42817E text on white | 4.49:1 | AA large text | Lc 71.1 | Content text, not long reading |
| #42817E text on black | 4.67:1 | AA | Lc -30.6 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDC
oklch(88.6% 0.016 192)
-
Step 300
300
#ACC7C5
oklch(80.9% 0.029 191.1)
-
Step 400
400
#7FAAA8
oklch(70.6% 0.046 192.6)
-
Step 500
500
#5D9592
oklch(63% 0.059 191.4)
-
Step 600
600 (this color)
#42817E
oklch(56.1% 0.065 191.4)
-
Step 700
700
#326C69
oklch(49.2% 0.061 190.9)
-
Step 800
800
#2A5856
oklch(42.7% 0.051 191.7)
-
Step 900
900
#274847
oklch(37.6% 0.039 193.1)
-
Step 950
950
#182A29
oklch(26.9% 0.024 191.4)
#42817E 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) | #7B7B7E | 0.070 |
| Deuteranopia (no green cones) | #70737F | 0.066 |
| Tritanopia (no blue cones) | #208480 | 0.023 |
| Achromatopsia (no color) | #777777 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42817E
#42817E
oklch(56.1% 0.065 191.4)
- #97656B
#97656B
oklch(56.1% 0.065 11.5)
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 #42817E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.033
- Dark Cyan #008B8B ΔE 0.037
- Bluegreen #017A79 ΔE 0.044
- Deep Aqua #08787F ΔE 0.046
- Dusty Teal #4C9085 ΔE 0.047
- Grey Blue #647D8E ΔE 0.050
- Battleship Grey #6B7C85 ΔE 0.051
- Ocean #017B92 ΔE 0.052
Use #42817E 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.