#1F755D
Closest named color: Dark Aquamarine (#017371). oklch(50.6% 0.089 170), rgb(31, 117, 93).
Aa
White text reads best on this color (5.58:1).
About this color
#1F755D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.089 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.035 away. White text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.76:1 |
| White text | 5.58:1 |
Values
| HEX | #1F755D |
| RGB | rgb(31, 117, 93) |
| HSL | hsl(163, 58%, 29%) |
| OKLCH | oklch(50.6% 0.089 170) |
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 #1F755D | 5.58:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #1F755D | 3.76:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #1F755D text on white | 5.58:1 | AA | Lc 77.6 | Fine for body text |
| #1F755D text on black | 3.76:1 | AA large text | Lc -24.2 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CBDFD7
oklch(88.6% 0.024 169.8)
-
Step 300
300
#A6CABC
oklch(80.9% 0.043 169.6)
-
Step 400
400
#74AF9A
oklch(70.7% 0.069 169.9)
-
Step 500
500
#4C9B81
oklch(63.2% 0.088 169.6)
-
Step 600
600
#28856B
oklch(55.6% 0.095 170.4)
-
Step 700
700 (this color)
#1F755D
oklch(50.6% 0.089 170)
-
Step 800
800
#195C49
oklch(42.8% 0.074 170.1)
-
Step 900
900
#1C4B3D
oklch(37.6% 0.057 170.8)
-
Step 950
950
#122C24
oklch(27% 0.036 171.2)
#1F755D 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) | #726D5C | 0.091 |
| Deuteranopia (no green cones) | #66645F | 0.088 |
| Tritanopia (no blue cones) | #00766E | 0.026 |
| Achromatopsia (no color) | #686868 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F755D
#1F755D
oklch(50.6% 0.089 170)
- #8B4F6C
#8B4F6C
oklch(50.7% 0.089 350.3)
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 #1F755D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.035
- Deep Turquoise #017374 ΔE 0.039
- Bluegreen #017A79 ΔE 0.041
- Deep Aqua #08787F ΔE 0.051
- Dark Aqua #05696B ΔE 0.052
- Teal #008080 ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.057
- Jungle Green #048243 ΔE 0.064
Use #1F755D 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.