#0A90A9
Closest named color: Blue NCS (#118AB2). oklch(60.2% 0.105 216), rgb(10, 144, 169).
Aa
Black text reads best on this color (5.57:1).
About this color
#0A90A9 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.105 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.026 away. Black text reads best on it, at 5.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #0A90A9 |
| RGB | rgb(10, 144, 169) |
| HSL | hsl(189, 89%, 35%) |
| OKLCH | oklch(60.2% 0.105 216) |
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 #0A90A9 | 3.76:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #0A90A9 | 5.57:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #0A90A9 text on white | 3.76:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #0A90A9 text on black | 5.57:1 | AA | Lc -37.0 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C5DEE5
oklch(88.4% 0.028 216.4)
-
Step 300
300
#9BCAD6
oklch(81% 0.052 215.1)
-
Step 400
400
#5FAEC1
oklch(70.8% 0.082 215.2)
-
Step 500
500 (this color)
#0A90A9
oklch(60.2% 0.105 216)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#062C34
oklch(27.2% 0.043 215.1)
#0A90A9 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) | #7F8BAA | 0.092 |
| Deuteranopia (no green cones) | #6C7EA9 | 0.082 |
| Tritanopia (no blue cones) | #009998 | 0.043 |
| Achromatopsia (no color) | #838383 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A90A9
#0A90A9
oklch(60.2% 0.105 216)
- #B76954
#B76954
oklch(60.4% 0.105 35.9)
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 #0A90A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.026
- Teal Blue #01889F ΔE 0.026
- Teal Green #0A9396 ΔE 0.034
- Dark Cyan #008B8B ΔE 0.046
- Sea #3C9992 ΔE 0.055
- Steel Blue #4682B4 ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.055
- Off Blue #5684AE ΔE 0.055
Use #0A90A9 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.