#458FDF
Closest named color: Dark Sky Blue (#448EE4). oklch(64% 0.141 252.4), rgb(69, 143, 223).
Aa
Black text reads best on this color (6.24:1).
About this color
#458FDF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.141 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.009 away. Black text reads best on it, at 6.24:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.24:1 |
| White text | 3.36:1 |
Values
| HEX | #458FDF |
| RGB | rgb(69, 143, 223) |
| HSL | hsl(211, 71%, 57%) |
| OKLCH | oklch(64% 0.141 252.4) |
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 #458FDF | 3.36:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #458FDF | 6.24:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #458FDF text on white | 3.36:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #458FDF text on black | 6.24:1 | AA | Lc -40.9 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A1C4ED
oklch(80.9% 0.069 252.7)
-
Step 400
400
#6CA4E4
oklch(70.6% 0.111 252.6)
-
Step 500
500 (this color)
#458FDF
oklch(64% 0.141 252.4)
-
Step 600
600
#1D74CA
oklch(55.5% 0.155 252.8)
-
Step 700
700
#0C61AE
oklch(49% 0.143 252.5)
-
Step 800
800
#10508D
oklch(42.8% 0.118 252.2)
-
Step 900
900
#174371
oklch(37.8% 0.092 252.4)
-
Step 950
950
#0F2742
oklch(26.9% 0.059 253.1)
#458FDF 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) | #6B94E2 | 0.041 |
| Deuteranopia (no green cones) | #5585DD | 0.028 |
| Tritanopia (no blue cones) | #00A2AC | 0.110 |
| Achromatopsia (no color) | #8C8C8C | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #458FDF
#458FDF
oklch(64% 0.141 252.4)
- #BE7C00
#BE7C00
oklch(64% 0.137 72.2)
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 #458FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.009
- Chefchaouen Blue #4895EF ΔE 0.027
- Soft Blue #6488EA ΔE 0.039
- Cornflower Blue #6495ED ΔE 0.041
- Water Blue #0E87CC ΔE 0.048
- Dodger Blue #1E90FF ΔE 0.050
- Faded Blue #658CBB ΔE 0.059
- Cool Blue #4984B8 ΔE 0.061
Use #458FDF 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.