#1CB8A5
Closest named color: Topaz (#13BBAF). oklch(70.4% 0.122 181.7), rgb(28, 184, 165).
Aa
Black text reads best on this color (8.44:1).
About this color
#1CB8A5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.122 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.014 away. Black text reads best on it, at 8.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.44:1 |
| White text | 2.48:1 |
Values
| HEX | #1CB8A5 |
| RGB | rgb(28, 184, 165) |
| HSL | hsl(173, 74%, 42%) |
| OKLCH | oklch(70.4% 0.122 181.7) |
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 #1CB8A5 | 2.48:1 | Fails | Lc -53.3 | Large or bold text, headings |
| Black text on #1CB8A5 | 8.44:1 | AAA | Lc 55.7 | Large or bold text, headings |
| #1CB8A5 text on white | 2.48:1 | Fails | Lc 48.3 | Large or bold text, headings |
| #1CB8A5 text on black | 8.44:1 | AAA | Lc -53.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DBEFEB
oklch(93.6% 0.022 182.5)
-
Step 200
200
#BCE3DB
oklch(88.6% 0.042 181.5)
-
Step 300
300
#87D1C4
oklch(80.8% 0.076 182)
-
Step 400
400 (this color)
#1CB8A5
oklch(70.4% 0.122 181.7)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#1CB8A5 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) | #AFADA4 | 0.129 |
| Deuteranopia (no green cones) | #9C9EA7 | 0.124 |
| Tritanopia (no blue cones) | #00BCB2 | 0.019 |
| Achromatopsia (no color) | #A4A4A4 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1CB8A5
#1CB8A5
oklch(70.4% 0.122 181.7)
- #DD7E9A
#DD7E9A
oklch(70.4% 0.121 1.8)
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 #1CB8A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.014
- Light Sea Green #20B2AA ΔE 0.021
- Greeny Blue #42B395 ΔE 0.024
- Green Blue #01C08D ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.056
- Greenblue #23C48B ΔE 0.059
- Bluey Green #2BB179 ΔE 0.059
- Dark Seafoam #1FB57A ΔE 0.059
Use #1CB8A5 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.