#0280AF
Closest named color: Nice Blue (#107AB0). oklch(56.5% 0.117 233.3), rgb(2, 128, 175).
Aa
Black text reads best on this color (4.70:1).
About this color
#0280AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.117 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.018 away. Black text reads best on it, at 4.70:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.70:1 |
| White text | 4.45:1 |
Values
| HEX | #0280AF |
| RGB | rgb(2, 128, 175) |
| HSL | hsl(196, 98%, 35%) |
| OKLCH | oklch(56.5% 0.117 233.3) |
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 #0280AF | 4.45:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #0280AF | 4.70:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #0280AF text on white | 4.45:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #0280AF text on black | 4.70:1 | AA | Lc -31.3 | 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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#A0C7DE
oklch(80.9% 0.053 234.2)
-
Step 400
400
#69AACD
oklch(70.8% 0.084 233.2)
-
Step 500
500
#3994C0
oklch(63.2% 0.107 233.2)
-
Step 600
600 (this color)
#0280AF
oklch(56.5% 0.117 233.3)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#104761
oklch(37.6% 0.07 234.2)
-
Step 950
950
#0C2A39
oklch(27% 0.045 233.7)
#0280AF 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) | #687FB1 | 0.072 |
| Deuteranopia (no green cones) | #5471AE | 0.061 |
| Tritanopia (no blue cones) | #008C90 | 0.069 |
| Achromatopsia (no color) | #777777 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0280AF
#0280AF
oklch(56.5% 0.117 233.3)
- #AA602B
#AA602B
oklch(56.4% 0.117 53.2)
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 #0280AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.018
- Blue NCS #118AB2 ΔE 0.030
- Steel Blue #4682B4 ΔE 0.037
- Teal Blue #01889F ΔE 0.039
- Cerulean #457B9D ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.041
- Windows Blue #3778BF ΔE 0.043
- Cool Blue #4984B8 ΔE 0.044
Use #0280AF 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.