#109F8A
Closest named color: Persian Green (#2A9D8F). oklch(63% 0.113 178.7), rgb(16, 159, 138).
Aa
Black text reads best on this color (6.34:1).
About this color
#109F8A is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.113 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.014 away. Black text reads best on it, at 6.34:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.34:1 |
| White text | 3.30:1 |
Values
| HEX | #109F8A |
| RGB | rgb(16, 159, 138) |
| HSL | hsl(171, 82%, 34%) |
| OKLCH | oklch(63% 0.113 178.7) |
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 #109F8A | 3.30:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #109F8A | 6.34:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #109F8A text on white | 3.30:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #109F8A text on black | 6.34:1 | AA | Lc -41.8 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#DFEEEA
oklch(93.7% 0.017 178.3)
-
Step 200
200
#C5E0D9
oklch(88.5% 0.03 178.3)
-
Step 300
300
#9ACDC1
oklch(80.9% 0.056 178.7)
-
Step 400
400
#5CB3A1
oklch(70.7% 0.089 178.4)
-
Step 500
500 (this color)
#109F8A
oklch(63% 0.113 178.7)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#042E27
oklch(27.1% 0.046 178.8)
#109F8A 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) | #989589 | 0.119 |
| Deuteranopia (no green cones) | #87888C | 0.114 |
| Tritanopia (no blue cones) | #00A299 | 0.021 |
| Achromatopsia (no color) | #8D8D8D | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #109F8A
#109F8A
oklch(63% 0.113 178.7)
- #BF6A88
#BF6A88
oklch(62.9% 0.113 358.3)
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 #109F8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.014
- Blue Green #0F9B8E ΔE 0.015
- Sea #3C9992 ΔE 0.030
- Ocean Green #3D9973 ΔE 0.033
- Jade #1FA774 ΔE 0.046
- Teal Green #0A9396 ΔE 0.046
- Grey Teal #5E9B8A ΔE 0.046
- Dusty Teal #4C9085 ΔE 0.048
Use #109F8A 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.