#4357AE
Closest named color: Denim Blue (#3B5B92). oklch(48.8% 0.14 270.7), rgb(67, 87, 174).
Aa
White text reads best on this color (6.53:1).
About this color
#4357AE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.140 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.050 away. White text reads best on it, at 6.53:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.21:1 |
| White text | 6.53:1 |
Values
| HEX | #4357AE |
| RGB | rgb(67, 87, 174) |
| HSL | hsl(229, 44%, 47%) |
| OKLCH | oklch(48.8% 0.14 270.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4357AE | 6.53:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #4357AE | 3.21:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #4357AE text on white | 6.53:1 | AA | Lc 82.1 | Fine for body text |
| #4357AE text on black | 3.21:1 | AA large text | Lc -19.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD8F3
oklch(88.4% 0.038 271)
-
Step 300
300
#B0BFED
oklch(80.9% 0.067 270.7)
-
Step 400
400
#879DE5
oklch(70.8% 0.109 270.5)
-
Step 500
500
#6A83DD
oklch(63.2% 0.138 270.3)
-
Step 600
600
#536ACA
oklch(55.5% 0.15 270.7)
-
Step 700
700 (this color)
#4357AE
oklch(48.8% 0.14 270.7)
-
Step 800
800
#38488E
oklch(42.6% 0.117 271)
-
Step 900
900
#303D71
oklch(37.6% 0.09 271)
-
Step 950
950
#1C2442
oklch(26.9% 0.057 270.9)
#4357AE with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2962B1 | 0.035 |
| Deuteranopia (no green cones) | #1259AC | 0.041 |
| Tritanopia (no blue cones) | #006B7A | 0.121 |
| Achromatopsia (no color) | #5D5D5D | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4357AE
#4357AE
oklch(48.8% 0.14 270.7)
- #755D00
#755D00
oklch(48.8% 0.1 91.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4357AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.050
- Dusky Blue #475F94 ΔE 0.051
- Mid Blue #276AB3 ΔE 0.053
- French Blue #436BAD ΔE 0.055
- Iris #6258C4 ΔE 0.057
- Twilight #4E518B ΔE 0.057
- Dusk Blue #26538D ΔE 0.065
- Blueberry #464196 ΔE 0.065
Use #4357AE in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.