#0273AD
Closest named color: Nice Blue (#107AB0). oklch(53.2% 0.124 241.5), rgb(2, 115, 173).
Aa
White text reads best on this color (5.17:1).
About this color
#0273AD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.124 and its hue 241°. 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 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.05:1 |
| White text | 5.17:1 |
Values
| HEX | #0273AD |
| RGB | rgb(2, 115, 173) |
| HSL | hsl(200, 98%, 34%) |
| OKLCH | oklch(53.2% 0.124 241.5) |
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 #0273AD | 5.17:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #0273AD | 4.05:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #0273AD text on white | 5.17:1 | AA | Lc 75.0 | Fine for body text |
| #0273AD text on black | 4.05:1 | AA large text | Lc -26.7 | 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
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A1C6E2
oklch(80.9% 0.056 241)
-
Step 400
400
#6CA8D4
oklch(70.8% 0.09 241.4)
-
Step 500
500
#4091C8
oklch(63.1% 0.114 241.6)
-
Step 600
600 (this color)
#0273AD
oklch(53.2% 0.124 241.5)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#0A547E
oklch(42.7% 0.096 241.4)
-
Step 900
900
#154665
oklch(37.8% 0.074 240.9)
-
Step 950
950
#0E293B
oklch(27% 0.047 240.8)
#0273AD 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) | #5775AF | 0.059 |
| Deuteranopia (no green cones) | #4167AC | 0.044 |
| Tritanopia (no blue cones) | #008188 | 0.082 |
| Achromatopsia (no color) | #6D6D6D | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0273AD
#0273AD
oklch(53.2% 0.124 241.5)
- #9E5900
#9E5900
oklch(53.3% 0.123 61.6)
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 #0273AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.021
- Ocean Blue #03719C ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.029
- Mid Blue #276AB3 ΔE 0.030
- Muted Blue #3B719F ΔE 0.033
- French Blue #436BAD ΔE 0.040
- Sea Blue #047495 ΔE 0.040
- Windows Blue #3778BF ΔE 0.042
Use #0273AD 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.