#108FAF
Closest named color: Blue NCS (#118AB2). oklch(60.3% 0.108 221.6), rgb(16, 143, 175).
Aa
Black text reads best on this color (5.57:1).
About this color
#108FAF is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.108 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.017 away. Black text reads best on it, at 5.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.57:1 |
| White text | 3.77:1 |
Values
| HEX | #108FAF |
| RGB | rgb(16, 143, 175) |
| HSL | hsl(192, 83%, 37%) |
| OKLCH | oklch(60.3% 0.108 221.6) |
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 #108FAF | 3.77:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #108FAF | 5.57:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #108FAF text on white | 3.77:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #108FAF text on black | 5.57:1 | AA | Lc -36.9 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#DFECF1
oklch(93.5% 0.015 222.7)
-
Step 200
200
#C5DEE7
oklch(88.5% 0.029 221.4)
-
Step 300
300
#9BC9D9
oklch(80.9% 0.053 221.2)
-
Step 400
400
#60ADC6
oklch(70.8% 0.084 221.2)
-
Step 500
500 (this color)
#108FAF
oklch(60.3% 0.108 221.6)
-
Step 600
600
#00809E
oklch(55.6% 0.103 221.9)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495C
oklch(37.6% 0.07 222.6)
-
Step 950
950
#062B36
oklch(27% 0.045 222.2)
#108FAF 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) | #7C8BB1 | 0.087 |
| Deuteranopia (no green cones) | #697DAF | 0.078 |
| Tritanopia (no blue cones) | #009999 | 0.052 |
| Achromatopsia (no color) | #838383 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #108FAF
#108FAF
oklch(60.3% 0.108 221.6)
- #B76A4C
#B76A4C
oklch(60.4% 0.108 41.8)
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 #108FAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.017
- Teal Blue #01889F ΔE 0.029
- Teal Green #0A9396 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.047
- Cool Blue #4984B8 ΔE 0.047
- Off Blue #5684AE ΔE 0.050
- Dusty Blue #5A86AD ΔE 0.050
- Dark Cyan #008B8B ΔE 0.056
Use #108FAF 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.