#187C85
Closest named color: Deep Aqua (#08787F). oklch(53.7% 0.086 204.4), rgb(24, 124, 133).
Aa
White text reads best on this color (4.92:1).
About this color
#187C85 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.086 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.016 away. White text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #187C85 |
| RGB | rgb(24, 124, 133) |
| HSL | hsl(185, 69%, 31%) |
| OKLCH | oklch(53.7% 0.086 204.4) |
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 #187C85 | 4.92:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #187C85 | 4.26:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #187C85 text on white | 4.92:1 | AA | Lc 73.7 | Content text, not long reading |
| #187C85 text on black | 4.26:1 | AA large text | Lc -28.0 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEE0
oklch(88.6% 0.022 204)
-
Step 300
300
#A4C8CC
oklch(80.8% 0.039 204.7)
-
Step 400
400
#71ACB3
oklch(70.7% 0.062 205.3)
-
Step 500
500
#4797A0
oklch(63% 0.079 205.2)
-
Step 600
600 (this color)
#187C85
oklch(53.7% 0.086 204.4)
-
Step 700
700
#106E76
oklch(49.2% 0.08 204.1)
-
Step 800
800
#135960
oklch(42.6% 0.066 205.1)
-
Step 900
900
#1A494E
oklch(37.6% 0.051 204.9)
-
Step 950
950
#112B2E
oklch(27% 0.032 205.4)
#187C85 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) | #717686 | 0.085 |
| Deuteranopia (no green cones) | #626C85 | 0.077 |
| Tritanopia (no blue cones) | #00827F | 0.024 |
| Achromatopsia (no color) | #707070 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187C85
#187C85
oklch(53.7% 0.086 204.4)
- #9A5955
#9A5955
oklch(53.7% 0.087 24.1)
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 #187C85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.016
- Teal #008080 ΔE 0.017
- Bluegreen #017A79 ΔE 0.021
- Ocean #017B92 ΔE 0.022
- Deep Turquoise #017374 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.039
- Sea Blue #047495 ΔE 0.041
- Dark Cyan #008B8B ΔE 0.044
Use #187C85 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.