#3F7575
Closest named color: Deep Aqua (#08787F). oklch(52.5% 0.058 195.5), rgb(63, 117, 117).
Aa
White text reads best on this color (5.23:1).
About this color
#3F7575 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.058 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.031 away. White text reads best on it, at 5.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.01:1 |
| White text | 5.23:1 |
Values
| HEX | #3F7575 |
| RGB | rgb(63, 117, 117) |
| HSL | hsl(180, 30%, 35%) |
| OKLCH | oklch(52.5% 0.058 195.5) |
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 #3F7575 | 5.23:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #3F7575 | 4.01:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #3F7575 text on white | 5.23:1 | AA | Lc 75.9 | Fine for body text |
| #3F7575 text on black | 4.01:1 | AA large text | Lc -25.9 | 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
#83A9A9
oklch(70.7% 0.041 196.3)
-
Step 500
500
#639494
oklch(63.2% 0.053 195.9)
-
Step 600
600 (this color)
#3F7575
oklch(52.5% 0.058 195.5)
-
Step 700
700
#396A6A
oklch(49% 0.053 195.6)
-
Step 800
800
#305757
oklch(42.8% 0.044 195.6)
-
Step 900
900
#2B4747
oklch(37.6% 0.034 195.8)
-
Step 950
950
#192A2A
oklch(27% 0.023 195.9)
#3F7575 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) | #6F7075 | 0.061 |
| Deuteranopia (no green cones) | #656975 | 0.056 |
| Tritanopia (no blue cones) | #237875 | 0.022 |
| Achromatopsia (no color) | #6C6C6C | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7575
#3F7575
oklch(52.5% 0.058 195.5)
- #895D5F
#895D5F
oklch(52.6% 0.058 16.2)
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 #3F7575, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.031
- Bluegreen #017A79 ΔE 0.032
- Deep Turquoise #017374 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.037
- Teal #008080 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.048
- Ocean #017B92 ΔE 0.049
- Slate #516572 ΔE 0.050
Use #3F7575 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.