#2257B3#2257B3

#2257B3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.6% C 0.157 H 260.6°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#2257B3
RGB	rgb(34, 87, 179)
HSL	hsl(218, 68%, 42%)
HSV	hsv(218, 81%, 70%)
CMYK	cmyk(81%, 51.4%, 0%, 29.8%)
CIE-LAB	lab(38.57, 17.02, -53.79)
CIE-LCH	lch(38.57, 56.42, 287.56°)
OKLab	oklab(47.61% -0.0255 -0.1549)
OKLCH	oklch(47.61% 0.157 260.6)
XYZ	xyz(12.2016, 10.4097, 44.0053)
Luminance	0.1041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2257B3 #B37E22

analogous

#22A0B3 #2257B3 #3622B3

triadic

#2257B3 #B32257 #57B322

tetradic

#2257B3 #B322A0 #B37E22 #22B336

square

#2257B3 #B322A0 #B37E22 #22B336

split-complementary

#2257B3 #B33622 #A0B322

monochromatic

#0E254C #183E80 #2257B3 #3974D9 #6C98E3

Accessibility & contrast

On white

6.81

#2257B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#2257B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2257B3

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2257B3	#FFFFFF	#000000	##FFFFFF
##2257B3	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A62B6

Deuteranopia (green-blind)

#0055B1

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2257b3;
/* rgb */ color: rgb(34, 87, 179);
/* oklch */ color: oklch(47.6% 0.157 260.6);

Tailwind

colors: {
  custom: {
    50: '#7585ca',
    500: '#2257b3',
    950: '#000000',
  },
}

SCSS

$custom: #2257b3;
$custom-light: #7585ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2257b3",
  "rgb": {
    "r": 34,
    "g": 87,
    "b": 179
  },
  "hsl": {
    "h": 218.069,
    "s": 68.075,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47606,
    "c": 0.15701,
    "h": 260.6
  },
  "luminance": 0.10411
}

Semantic roles & 50–950 ramp

primary

#2257B3

secondary

#C9A668

accent

#AB3DEB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2257B3

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

Preview Lab → · Contrast checker → · Palette generator →