#154BB4#154BB4
#154BB4 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.8% C 0.176 H 261.9°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).
Color values
| HEX | #154BB4 |
|---|---|
| RGB | rgb(21, 75, 180) |
| HSL | hsl(220, 79%, 39%) |
| HSV | hsv(220, 88%, 71%) |
| CMYK | cmyk(88.3%, 58.3%, 0%, 29.4%) |
| CIE-LAB | lab(34.97, 24.39, -60.23) |
| CIE-LCH | lch(34.97, 64.98, 292.05°) |
| OKLab | oklab(44.81% -0.0248 -0.1742) |
| OKLCH | oklch(44.81% 0.176 261.9) |
| XYZ | xyz(11.0606, 8.4854, 44.2261) |
| Luminance | 0.0849 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 1.88
Sapphire
#0F52BA
ΔE00 2.49
Blue Blue
#2242C7
ΔE00 4.76
Cobalt (survey)
#1E488F
ΔE00 4.97
Dusk Blue
#26538D
ΔE00 5.96
Sapphire (survey)
#2138AB
ΔE00 6.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#154BB4 #B47E15
analogous
#159AB4 #154BB4 #2F15B4
triadic
#154BB4 #B4154B #4BB415
tetradic
#154BB4 #B4159A #B47E15 #15B42F
square
#154BB4 #B4159A #B47E15 #15B42F
split-complementary
#154BB4 #B42F15 #9AB415
monochromatic
#081D46 #0F347D #154BB4 #2164E5 #588AEC
Accessibility & contrast
On white
7.79
#154BB4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.70
#154BB4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #154BB4
7.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##154BB4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##154BB4 | 1.00 | 7.79 | 2.70 | 7.79 |
| #FFFFFF | 7.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005AB8
Deuteranopia (green-blind)
#004BB2
Tritanopia (blue-blind)
#006678
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #154bb4; /* rgb */ color: rgb(21, 75, 180); /* oklch */ color: oklch(44.8% 0.176 261.9);
Tailwind
colors: {
custom: {
50: '#737ccb',
500: '#154bb4',
950: '#000000',
},
}SCSS
$custom: #154bb4; $custom-light: #737ccb; $custom-dark: #000000;
JSON
{
"hex": "#154bb4",
"rgb": {
"r": 21,
"g": 75,
"b": 180
},
"hsl": {
"h": 219.623,
"s": 79.104,
"l": 39.412
},
"oklch": {
"l": 0.44808,
"c": 0.17601,
"h": 261.9
},
"luminance": 0.08487
}Semantic roles & 50–950 ramp
primary
#154BB4
secondary
#CFA656
accent
#B332F6
background
#F7F7FC
surface
#EEEEF9
border
#C9C9D2
text
#0A0913
muted
#7C7B82