#0073AF
Closest named color: Nice Blue (#107AB0). oklch(53.3% 0.127 242.2), rgb(0, 115, 175).
Aa
White text reads best on this color (5.15:1).
About this color
#0073AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.127 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.021 away. White text reads best on it, at 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #0073AF |
| RGB | rgb(0, 115, 175) |
| HSL | hsl(201, 100%, 34%) |
| OKLCH | oklch(53.3% 0.127 242.2) |
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 #0073AF | 5.15:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #0073AF | 4.07:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #0073AF text on white | 5.15:1 | AA | Lc 74.9 | Content text, not long reading |
| #0073AF text on black | 4.07:1 | AA large text | Lc -26.8 | Dividers and decoration only |
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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A1C6E3
oklch(80.9% 0.057 242)
-
Step 400
400
#6CA8D5
oklch(70.8% 0.091 242.1)
-
Step 500
500
#3F91CA
oklch(63.1% 0.117 242.3)
-
Step 600
600 (this color)
#0073AF
oklch(53.3% 0.127 242.2)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800
#09547F
oklch(42.7% 0.097 241.8)
-
Step 900
900
#144666
oklch(37.8% 0.075 241.4)
-
Step 950
950
#0E293C
oklch(27% 0.048 242.2)
#0073AF 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) | #5675B2 | 0.059 |
| Deuteranopia (no green cones) | #3F67AE | 0.043 |
| Tritanopia (no blue cones) | #008289 | 0.085 |
| Achromatopsia (no color) | #6D6D6D | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0073AF
#0073AF
oklch(53.3% 0.127 242.2)
- #9D5900
#9D5900
oklch(53.1% 0.122 62.1)
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 #0073AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.021
- Mid Blue #276AB3 ΔE 0.029
- Ocean Blue #03719C ΔE 0.030
- Flat Blue #3C73A8 ΔE 0.030
- Muted Blue #3B719F ΔE 0.035
- French Blue #436BAD ΔE 0.039
- Windows Blue #3778BF ΔE 0.040
- Sea Blue #047495 ΔE 0.043
Use #0073AF 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.