#42746E
Closest named color: Bluegreen (#017A79). oklch(52.2% 0.055 185.8), rgb(66, 116, 110).
Aa
White text reads best on this color (5.30:1).
About this color
#42746E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.055 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.036 away. White text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #42746E |
| RGB | rgb(66, 116, 110) |
| HSL | hsl(173, 27%, 36%) |
| OKLCH | oklch(52.2% 0.055 185.8) |
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 #42746E | 5.30:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #42746E | 3.95:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #42746E text on white | 5.30:1 | AA | Lc 76.3 | Fine for body text |
| #42746E text on black | 3.95:1 | AA large text | Lc -25.4 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CFDCDA
oklch(88.4% 0.014 185.9)
-
Step 300
300
#AEC7C3
oklch(81% 0.028 185)
-
Step 400
400
#83AAA4
oklch(70.8% 0.043 184.7)
-
Step 500
500
#63958E
oklch(63.2% 0.055 184.9)
-
Step 600
600
#487F78
oklch(55.6% 0.06 185.2)
-
Step 700
700 (this color)
#42746E
oklch(52.2% 0.055 185.8)
-
Step 800
800
#305753
oklch(42.7% 0.045 187.2)
-
Step 900
900
#2B4844
oklch(37.7% 0.036 184.8)
-
Step 950
950
#1A2A28
oklch(27% 0.022 186.2)
#42746E 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) | #6F6F6E | 0.058 |
| Deuteranopia (no green cones) | #67696F | 0.055 |
| Tritanopia (no blue cones) | #2E7672 | 0.017 |
| Achromatopsia (no color) | #6B6B6B | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42746E
#42746E
oklch(52.2% 0.055 185.8)
- #855C65
#855C65
oklch(52.1% 0.055 4.7)
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 #42746E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.037
- Deep Turquoise #017374 ΔE 0.038
- Deep Aqua #08787F ΔE 0.038
- Teal #008080 ΔE 0.045
- Slate #516572 ΔE 0.050
- Dim Gray #696969 ΔE 0.055
- Dark Aqua #05696B ΔE 0.056
Use #42746E 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.