#187D77
Closest named color: Bluegreen (#017A79). oklch(53.5% 0.087 188.7), rgb(24, 125, 119).
Aa
White text reads best on this color (4.95:1).
About this color
#187D77 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.087 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.013 away. White text reads best on it, at 4.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #187D77 |
| RGB | rgb(24, 125, 119) |
| HSL | hsl(176, 68%, 29%) |
| OKLCH | oklch(53.5% 0.087 188.7) |
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 #187D77 | 4.95:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #187D77 | 4.23:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #187D77 text on white | 4.95:1 | AA | Lc 73.9 | Content text, not long reading |
| #187D77 text on black | 4.23:1 | AA large text | Lc -27.8 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDC
oklch(88.5% 0.022 189.5)
-
Step 300
300
#A5C9C5
oklch(80.9% 0.039 188.1)
-
Step 400
400
#72AEA8
oklch(70.8% 0.063 187.9)
-
Step 500
500
#489993
oklch(63.1% 0.08 188.9)
-
Step 600
600 (this color)
#187D77
oklch(53.5% 0.087 188.7)
-
Step 700
700
#116F6A
oklch(49.1% 0.081 189.2)
-
Step 800
800
#145B56
oklch(42.8% 0.067 187.9)
-
Step 900
900
#1A4A47
oklch(37.6% 0.052 189.5)
-
Step 950
950
#112C2A
oklch(27.1% 0.033 189)
#187D77 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) | #757677 | 0.091 |
| Deuteranopia (no green cones) | #686C78 | 0.086 |
| Tritanopia (no blue cones) | #00807B | 0.010 |
| Achromatopsia (no color) | #707070 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187D77
#187D77
oklch(53.5% 0.087 188.7)
- #985763
#985763
oklch(53.5% 0.087 8.5)
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 #187D77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.013
- Teal #008080 ΔE 0.014
- Deep Aqua #08787F ΔE 0.024
- Dark Aquamarine #017371 ΔE 0.033
- Deep Turquoise #017374 ΔE 0.033
- Dark Cyan #008B8B ΔE 0.045
- Ocean #017B92 ΔE 0.046
- Teal Blue #01889F ΔE 0.062
Use #187D77 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.