#4259AF#4259AF

#4259AF is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.2% C 0.139 H 269.5°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#4259AF
RGB	rgb(66, 89, 175)
HSL	hsl(227, 45%, 47%)
HSV	hsv(227, 62%, 69%)
CMYK	cmyk(62.3%, 49.1%, 0%, 31.4%)
CIE-LAB	lab(40.24, 18.81, -48.66)
CIE-LCH	lch(40.24, 52.17, 291.13°)
OKLab	oklab(49.18% -0.0013 -0.1392)
OKLCH	oklch(49.18% 0.139 269.5)
XYZ	xyz(13.5544, 11.3970, 42.0347)
Luminance	0.1140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259AF #AF9842

analogous

#4290AF #4259AF #6142AF

triadic

#4259AF #AF4259 #59AF42

tetradic

#4259AF #AF4290 #AF9842 #42AF61

square

#4259AF #AF4290 #AF9842 #42AF61

split-complementary

#4259AF #AF6142 #90AF42

monochromatic

#202C56 #314283 #4259AF #687CC6 #95A3D7

Accessibility & contrast

On white

6.40

#4259AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#4259AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259AF

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259AF	#FFFFFF	#000000	##FFFFFF
##4259AF	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C64B2

Deuteranopia (green-blind)

#165AAD

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4259af;
/* rgb */ color: rgb(66, 89, 175);
/* oklch */ color: oklch(49.2% 0.139 269.5);

Tailwind

colors: {
  custom: {
    50: '#8187c7',
    500: '#4259af',
    950: '#000000',
  },
}

SCSS

$custom: #4259af;
$custom-light: #8187c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4259af",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 175
  },
  "hsl": {
    "h": 227.339,
    "s": 45.228,
    "l": 47.255
  },
  "oklch": {
    "l": 0.49175,
    "c": 0.13923,
    "h": 269.5
  },
  "luminance": 0.11398
}

Semantic roles & 50–950 ramp

primary

#4259AF

secondary

#C2B78A

accent

#B953D5

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4259AF

Body copy rendered with the generated semantic roles for this colour.

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