#1479CB
Closest named color: Windows Blue (#3778BF). oklch(56.6% 0.152 249.9), rgb(20, 121, 203).
Aa
Black text reads best on this color (4.62:1).
About this color
#1479CB is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.152 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.024 away. Black text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #1479CB |
| RGB | rgb(20, 121, 203) |
| HSL | hsl(207, 82%, 44%) |
| OKLCH | oklch(56.6% 0.152 249.9) |
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 #1479CB | 4.53:1 | AA | Lc -76.4 | Fine for body text |
| Black text on #1479CB | 4.62:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #1479CB text on white | 4.53:1 | AA | Lc 70.9 | Content text, not long reading |
| #1479CB text on black | 4.62:1 | AA | Lc -30.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF2
oklch(88.6% 0.038 249.5)
-
Step 300
300
#9FC5EC
oklch(80.9% 0.069 249.4)
-
Step 400
400
#69A5E2
oklch(70.6% 0.11 250)
-
Step 500
500
#3C8DDA
oklch(63% 0.14 250.1)
-
Step 600
600 (this color)
#1479CB
oklch(56.6% 0.152 249.9)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#06518C
oklch(42.8% 0.117 249.9)
-
Step 900
900
#134470
oklch(37.9% 0.091 249.8)
-
Step 950
950
#0D2841
oklch(27% 0.057 249.3)
#1479CB 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) | #507ECE | 0.046 |
| Deuteranopia (no green cones) | #316FC9 | 0.028 |
| Tritanopia (no blue cones) | #008D98 | 0.111 |
| Achromatopsia (no color) | #767676 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1479CB
#1479CB
oklch(56.6% 0.152 249.9)
- #A36700
#A36700
oklch(56.6% 0.122 70.1)
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 #1479CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.024
- Water Blue #0E87CC ΔE 0.039
- Nice Blue #107AB0 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.050
- Flat Blue #3C73A8 ΔE 0.056
- French Blue #436BAD ΔE 0.057
- Steel Blue #4682B4 ΔE 0.058
- Cool Blue #4984B8 ΔE 0.060
Use #1479CB 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.