#233BA4#233BA4
#233BA4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.171 H 267.7°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).
Color values
| HEX | #233BA4 |
|---|---|
| RGB | rgb(35, 59, 164) |
| HSL | hsl(229, 65%, 39%) |
| HSV | hsv(229, 79%, 64%) |
| CMYK | cmyk(78.7%, 64%, 0%, 35.7%) |
| CIE-LAB | lab(29.82, 30.00, -59.07) |
| CIE-LCH | lch(29.82, 66.26, 296.93°) |
| OKLab | oklab(40.67% -0.0068 -0.1709) |
| OKLCH | oklch(40.67% 0.171 267.7) |
| XYZ | xyz(8.9556, 6.1646, 35.8327) |
| Luminance | 0.0617 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.46
Cobalt
#0047AB
ΔE00 4.96
Blue Blue
#2242C7
ΔE00 5.02
Blueberry
#464196
ΔE00 5.30
Ocean Blue
#4F42B5
ΔE00 6.37
Cobalt (survey)
#1E488F
ΔE00 6.51
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233BA4 #A48C23
analogous
#237CA4 #233BA4 #4C23A4
triadic
#233BA4 #A4233B #3BA423
tetradic
#233BA4 #A4237C #A48C23 #23A44C
square
#233BA4 #A4237C #A48C23 #23A44C
split-complementary
#233BA4 #A44C23 #7CA423
monochromatic
#0D173F #182972 #233BA4 #314FD3 #647ADE
Accessibility & contrast
On white
9.40
#233BA4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.23
#233BA4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233BA4
9.40:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233BA4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233BA4 | 1.00 | 9.40 | 2.23 | 9.40 |
| #FFFFFF | 9.40 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.40 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004CA7
Deuteranopia (green-blind)
#0040A2
Tritanopia (blue-blind)
#00576A
Achromatopsia (no color)
#464646
Design tokens & code
CSS
--color: #233ba4; /* rgb */ color: rgb(35, 59, 164); /* oklch */ color: oklch(40.7% 0.171 267.7);
Tailwind
colors: {
custom: {
50: '#7470c0',
500: '#233ba4',
950: '#000000',
},
}SCSS
$custom: #233ba4; $custom-light: #7470c0; $custom-dark: #000000;
JSON
{
"hex": "#233ba4",
"rgb": {
"r": 35,
"g": 59,
"b": 164
},
"hsl": {
"h": 228.837,
"s": 64.824,
"l": 39.02
},
"oklch": {
"l": 0.40669,
"c": 0.17102,
"h": 267.7
},
"luminance": 0.06166
}Semantic roles & 50–950 ramp
primary
#233BA4
secondary
#C3B160
accent
#C940E8
background
#F7F6FB
surface
#EEECF7
border
#C9C7D0
text
#0A0712
muted
#7C7A81