#1043B4#1043B4
#1043B4 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.1% C 0.187 H 262.9°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).
Color values
| HEX | #1043B4 |
|---|---|
| RGB | rgb(16, 67, 180) |
| HSL | hsl(221, 84%, 38%) |
| HSV | hsv(221, 91%, 71%) |
| CMYK | cmyk(91.1%, 62.8%, 0%, 29.4%) |
| CIE-LAB | lab(32.74, 29.49, -63.89) |
| CIE-LCH | lch(32.74, 70.36, 294.78°) |
| OKLab | oklab(43.11% -0.0231 -0.1851) |
| OKLCH | oklch(43.11% 0.187 262.9) |
| XYZ | xyz(10.4561, 7.4184, 44.0520) |
| Luminance | 0.0742 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.55
Blue Blue
#2242C7
ΔE00 3.30
Sapphire (survey)
#2138AB
ΔE00 3.85
Sapphire
#0F52BA
ΔE00 5.05
Blue (survey)
#0343DF
ΔE00 5.68
Cobalt (survey)
#1E488F
ΔE00 5.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1043B4 #B48110
analogous
#1095B4 #1043B4 #2F10B4
triadic
#1043B4 #B41043 #43B410
tetradic
#1043B4 #B41095 #B48110 #10B42F
square
#1043B4 #B41095 #B48110 #10B42F
split-complementary
#1043B4 #B42F10 #95B410
monochromatic
#061944 #0B2E7C #1043B4 #1759EA #4F81EF
Accessibility & contrast
On white
8.45
#1043B4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.48
#1043B4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1043B4
8.45:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1043B4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1043B4 | 1.00 | 8.45 | 2.48 | 8.45 |
| #FFFFFF | 8.45 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.48 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.45 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0055B8
Deuteranopia (green-blind)
#0046B2
Tritanopia (blue-blind)
#006175
Achromatopsia (no color)
#4D4D4D
Design tokens & code
CSS
--color: #1043b4; /* rgb */ color: rgb(16, 67, 180); /* oklch */ color: oklch(43.1% 0.187 262.9);
Tailwind
colors: {
custom: {
50: '#7376cb',
500: '#1043b4',
950: '#000000',
},
}SCSS
$custom: #1043b4; $custom-light: #7376cb; $custom-dark: #000000;
JSON
{
"hex": "#1043b4",
"rgb": {
"r": 16,
"g": 67,
"b": 180
},
"hsl": {
"h": 221.341,
"s": 83.673,
"l": 38.431
},
"oklch": {
"l": 0.43107,
"c": 0.18658,
"h": 262.9
},
"luminance": 0.0742
}Semantic roles & 50–950 ramp
primary
#1043B4
secondary
#D1A84F
accent
#BA2EFA
background
#F7F7FC
surface
#EEEDF9
border
#C9C8D2
text
#0A0813
muted
#7C7B82