#1C9989
Closest named color: Blue Green (#0F9B8E). oklch(61.5% 0.105 181.6), rgb(28, 153, 137).
Aa
Black text reads best on this color (5.96:1).
About this color
#1C9989 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.105 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Green (#0F9B8E), ΔE 0.008 away. Black text reads best on it, at 5.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Blue Green (#0F9B8E) |
| Black text | 5.96:1 |
| White text | 3.51:1 |
Values
| HEX | #1C9989 |
| RGB | rgb(28, 153, 137) |
| HSL | hsl(172, 69%, 35%) |
| OKLCH | oklch(61.5% 0.105 181.6) |
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 #1C9989 | 3.51:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #1C9989 | 5.96:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #1C9989 text on white | 3.51:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #1C9989 text on black | 5.96:1 | AA | Lc -39.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C6E0DA
oklch(88.6% 0.029 180.2)
-
Step 300
300
#9DCCC3
oklch(80.9% 0.051 181.9)
-
Step 400
400
#61B2A4
oklch(70.8% 0.083 181.3)
-
Step 500
500 (this color)
#1C9989
oklch(61.5% 0.105 181.6)
-
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
#072D28
oklch(26.9% 0.043 182.5)
#1C9989 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) | #928F88 | 0.112 |
| Deuteranopia (no green cones) | #82848A | 0.105 |
| Tritanopia (no blue cones) | #009C94 | 0.016 |
| Achromatopsia (no color) | #898989 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C9989
#1C9989
oklch(61.5% 0.105 181.6)
- #B86980
#B86980
oklch(61.6% 0.104 1.9)
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 #1C9989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Green #0F9B8E ΔE 0.008
- Persian Green #2A9D8F ΔE 0.016
- Sea #3C9992 ΔE 0.023
- Teal Green #0A9396 ΔE 0.031
- Ocean Green #3D9973 ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.035
- Dark Cyan #008B8B ΔE 0.046
- Grey Teal #5E9B8A ΔE 0.046
Use #1C9989 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.