#1B6F73
Closest named color: Deep Turquoise (#017374). oklch(49.6% 0.076 199.8), rgb(27, 111, 115).
Aa
White text reads best on this color (5.88:1).
About this color
#1B6F73 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.076 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.013 away. White text reads best on it, at 5.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #1B6F73 |
| RGB | rgb(27, 111, 115) |
| HSL | hsl(183, 62%, 28%) |
| OKLCH | oklch(49.6% 0.076 199.8) |
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 #1B6F73 | 5.88:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #1B6F73 | 3.56:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #1B6F73 text on white | 5.88:1 | AA | Lc 79.1 | Fine for body text |
| #1B6F73 text on black | 3.56:1 | AA large text | Lc -22.7 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADDDE
oklch(88.4% 0.02 200.6)
-
Step 300
300
#A6C8CA
oklch(80.9% 0.036 200.9)
-
Step 400
400
#74ACAF
oklch(70.7% 0.059 200.2)
-
Step 500
500
#4B979B
oklch(63% 0.075 200)
-
Step 600
600
#288286
oklch(55.7% 0.082 199.4)
-
Step 700
700 (this color)
#1B6F73
oklch(49.6% 0.076 199.8)
-
Step 800
800
#19595C
oklch(42.6% 0.063 199.6)
-
Step 900
900
#1C494C
oklch(37.6% 0.049 201.3)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#1B6F73 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) | #666A73 | 0.077 |
| Deuteranopia (no green cones) | #5A6073 | 0.073 |
| Tritanopia (no blue cones) | #007370 | 0.016 |
| Achromatopsia (no color) | #646464 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B6F73
#1B6F73
oklch(49.6% 0.076 199.8)
- #885050
#885050
oklch(49.6% 0.076 20.1)
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 #1B6F73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.013
- Dark Aquamarine #017371 ΔE 0.015
- Dark Aqua #05696B ΔE 0.024
- Deep Aqua #08787F ΔE 0.028
- Bluegreen #017A79 ΔE 0.033
- Dark Green Blue #1F6357 ΔE 0.050
- Teal #008080 ΔE 0.050
- Ocean #017B92 ΔE 0.053
Use #1B6F73 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.