#38666E
Closest named color: Slate (#516572). oklch(48.1% 0.052 209.9), rgb(56, 102, 110).
Aa
White text reads best on this color (6.37:1).
About this color
#38666E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.052 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.031 away. White text reads best on it, at 6.37:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #38666E |
| RGB | rgb(56, 102, 110) |
| HSL | hsl(189, 33%, 33%) |
| OKLCH | oklch(48.1% 0.052 209.9) |
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 #38666E | 6.37:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #38666E | 3.29:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #38666E text on white | 6.37:1 | AA | Lc 81.6 | Fine for body text |
| #38666E text on black | 3.29:1 | AA large text | Lc -20.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AFC5CA
oklch(80.8% 0.025 212.9)
-
Step 400
400
#84A8AE
oklch(70.7% 0.04 208.8)
-
Step 500
500
#64929B
oklch(63% 0.052 211.1)
-
Step 600
600
#4A7D85
oklch(55.7% 0.056 208.4)
-
Step 700
700 (this color)
#38666E
oklch(48.1% 0.052 209.9)
-
Step 800
800
#31565C
oklch(42.8% 0.043 208.9)
-
Step 900
900
#2C474B
oklch(37.8% 0.033 207.6)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#38666E 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) | #5F636F | 0.050 |
| Deuteranopia (no green cones) | #565C6E | 0.046 |
| Tritanopia (no blue cones) | #1C6A68 | 0.028 |
| Achromatopsia (no color) | #5F5F5F | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #38666E
#38666E
oklch(48.1% 0.052 209.9)
- #79534C
#79534C
oklch(48.1% 0.053 30.7)
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 #38666E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.031
- Dark Aqua #05696B ΔE 0.032
- Deep Turquoise #017374 ΔE 0.044
- Petrol #005F6A ΔE 0.044
- YInMn Blue #415A77 ΔE 0.045
- Dark Aquamarine #017371 ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.046
- Denim #3B638C ΔE 0.053
Use #38666E 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.