#42797A
Closest named color: Deep Aqua (#08787F). oklch(53.9% 0.058 197.1), rgb(66, 121, 122).
Aa
White text reads best on this color (4.94:1).
About this color
#42797A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.058 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.034 away. White text reads best on it, at 4.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #42797A |
| RGB | rgb(66, 121, 122) |
| HSL | hsl(181, 30%, 37%) |
| OKLCH | oklch(53.9% 0.058 197.1) |
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 #42797A | 4.94:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #42797A | 4.24:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #42797A text on white | 4.94:1 | AA | Lc 74.1 | Content text, not long reading |
| #42797A text on black | 4.24:1 | AA large text | Lc -27.6 | 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 600.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEB
oklch(93.5% 0.007 197)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AEC6C6
oklch(80.9% 0.026 196.6)
-
Step 400
400
#82A9AA
oklch(70.7% 0.042 198.2)
-
Step 500
500
#629495
oklch(63.2% 0.054 197.5)
-
Step 600
600 (this color)
#42797A
oklch(53.9% 0.058 197.1)
-
Step 700
700
#386A6B
oklch(49% 0.054 197.2)
-
Step 800
800
#2F5757
oklch(42.8% 0.045 195.6)
-
Step 900
900
#2A4748
oklch(37.6% 0.035 198.6)
-
Step 950
950
#192A2A
oklch(27% 0.023 195.9)
#42797A 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) | #72747A | 0.060 |
| Deuteranopia (no green cones) | #696D7A | 0.057 |
| Tritanopia (no blue cones) | #257C79 | 0.023 |
| Achromatopsia (no color) | #707070 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42797A
#42797A
oklch(53.9% 0.058 197.1)
- #8D6162
#8D6162
oklch(53.9% 0.058 17.6)
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 #42797A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.034
- Bluegreen #017A79 ΔE 0.035
- Teal #008080 ΔE 0.035
- Metallic Blue #4F738E ΔE 0.044
- Deep Turquoise #017374 ΔE 0.045
- Ocean #017B92 ΔE 0.045
- Dark Aquamarine #017371 ΔE 0.046
- Battleship Gray #6C757D ΔE 0.052
Use #42797A 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.