#4258AE
Closest named color: Denim Blue (#3B5B92). oklch(48.9% 0.139 269.8), rgb(66, 88, 174).
Aa
White text reads best on this color (6.48:1).
About this color
#4258AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.139 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.048 away. White text reads best on it, at 6.48:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #4258AE |
| RGB | rgb(66, 88, 174) |
| HSL | hsl(228, 45%, 47%) |
| OKLCH | oklch(48.9% 0.139 269.8) |
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 #4258AE | 6.48:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #4258AE | 3.23:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #4258AE text on white | 6.48:1 | AA | Lc 81.9 | Fine for body text |
| #4258AE text on black | 3.23:1 | AA large text | Lc -20.0 | 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
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AFBFED
oklch(80.8% 0.068 269.9)
-
Step 400
400
#869DE4
oklch(70.7% 0.108 269.8)
-
Step 500
500
#6983DC
oklch(63% 0.137 269.8)
-
Step 600
600
#526BCA
oklch(55.7% 0.149 269.9)
-
Step 700
700 (this color)
#4258AE
oklch(48.9% 0.139 269.8)
-
Step 800
800
#37498D
oklch(42.7% 0.114 269.9)
-
Step 900
900
#2F3E71
oklch(37.8% 0.089 269.4)
-
Step 950
950
#1C2442
oklch(26.9% 0.057 270.9)
#4258AE 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) | #2B63B1 | 0.034 |
| Deuteranopia (no green cones) | #1559AC | 0.039 |
| Tritanopia (no blue cones) | #006C7B | 0.119 |
| Achromatopsia (no color) | #5E5E5E | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4258AE
#4258AE
oklch(48.9% 0.139 269.8)
- #765D00
#765D00
oklch(49% 0.1 90.4)
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 #4258AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.050
- Mid Blue #276AB3 ΔE 0.050
- French Blue #436BAD ΔE 0.053
- Iris #6258C4 ΔE 0.057
- Twilight #4E518B ΔE 0.058
- Dusk Blue #26538D ΔE 0.064
- Blueberry #464196 ΔE 0.067
Use #4258AE 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.