#42616F
Closest named color: Slate (#516572). oklch(47.4% 0.043 227.9), rgb(66, 97, 111).
Aa
White text reads best on this color (6.62:1).
About this color
#42616F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.043 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.024 away. White text reads best on it, at 6.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.17:1 |
| White text | 6.62:1 |
Values
| HEX | #42616F |
| RGB | rgb(66, 97, 111) |
| HSL | hsl(199, 25%, 35%) |
| OKLCH | oklch(47.4% 0.043 227.9) |
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 #42616F | 6.62:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #42616F | 3.17:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #42616F text on white | 6.62:1 | AA | Lc 82.7 | Fine for body text |
| #42616F text on black | 3.17:1 | AA large text | Lc -19.2 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B4C4CB
oklch(81% 0.02 225.8)
-
Step 400
400
#8CA5B1
oklch(70.7% 0.033 228.4)
-
Step 500
500
#6F8F9E
oklch(63.1% 0.042 228.2)
-
Step 600
600
#577989
oklch(55.6% 0.046 228.7)
-
Step 700
700 (this color)
#42616F
oklch(47.4% 0.043 227.9)
-
Step 800
800
#3A535E
oklch(42.6% 0.035 227)
-
Step 900
900
#32454D
oklch(37.8% 0.028 225.7)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#42616F 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) | #5A6070 | 0.033 |
| Deuteranopia (no green cones) | #535A6F | 0.030 |
| Tritanopia (no blue cones) | #316565 | 0.030 |
| Achromatopsia (no color) | #5D5D5D | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42616F
#42616F
oklch(47.4% 0.043 227.9)
- #705547
#705547
oklch(47.4% 0.042 48.7)
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 #42616F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.024
- YInMn Blue #415A77 ΔE 0.029
- Dusty Grape #545775 ΔE 0.041
- Denim #3B638C ΔE 0.046
- Dark Aqua #05696B ΔE 0.048
- Petrol #005F6A ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.056
- Dark Green Blue #1F6357 ΔE 0.057
Use #42616F 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.