#153F89#153F89
#153F89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.132 H 260.8°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).
Color values
| HEX | #153F89 |
|---|---|
| RGB | rgb(21, 63, 137) |
| HSL | hsl(218, 73%, 31%) |
| HSV | hsv(218, 85%, 54%) |
| CMYK | cmyk(84.7%, 54%, 0%, 46.3%) |
| CIE-LAB | lab(28.17, 15.14, -45.30) |
| CIE-LCH | lch(28.17, 47.76, 288.48°) |
| OKLab | oklab(38.58% -0.0211 -0.1306) |
| OKLCH | oklch(38.58% 0.132 260.8) |
| XYZ | xyz(6.6005, 5.5198, 24.3796) |
| Luminance | 0.0552 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Darkish Blue
#014182
ΔE00 2.58
Cobalt (survey)
#1E488F
ΔE00 2.90
Twilight Blue
#0A437A
ΔE00 3.79
Cobalt
#0047AB
ΔE00 4.89
Marine Blue
#01386A
ΔE00 5.01
Prussian Blue
#004577
ΔE00 5.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#153F89 #895F15
analogous
#157989 #153F89 #251589
triadic
#153F89 #89153F #3F8915
tetradic
#153F89 #891579 #895F15 #158925
square
#153F89 #891579 #895F15 #158925
split-complementary
#153F89 #892515 #798915
monochromatic
#050E1F #0D2754 #153F89 #1D57BE #3875E0
Accessibility & contrast
On white
9.98
#153F89 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.10
#153F89 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #153F89
9.98:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##153F89 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##153F89 | 1.00 | 9.98 | 2.10 | 9.98 |
| #FFFFFF | 9.98 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.10 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.98 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#07488C
Deuteranopia (green-blind)
#003D88
Tritanopia (blue-blind)
#00515D
Achromatopsia (no color)
#424242
Design tokens & code
CSS
--color: #153f89; /* rgb */ color: rgb(21, 63, 137); /* oklch */ color: oklch(38.6% 0.132 260.8);
Tailwind
colors: {
custom: {
50: '#6873ac',
500: '#153f89',
950: '#000000',
},
}SCSS
$custom: #153f89; $custom-light: #6873ac; $custom-dark: #000000;
JSON
{
"hex": "#153f89",
"rgb": {
"r": 21,
"g": 63,
"b": 137
},
"hsl": {
"h": 218.276,
"s": 73.418,
"l": 30.98
},
"oklch": {
"l": 0.38584,
"c": 0.1323,
"h": 260.8
},
"luminance": 0.05521
}Semantic roles & 50–950 ramp
primary
#153F89
secondary
#BD8F3D
accent
#AD38F0
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#070810
muted
#7A7B7F