#458CCB
Closest named color: Cool Blue (#4984B8). oklch(62.3% 0.119 247.8), rgb(69, 140, 203).
Aa
Black text reads best on this color (5.86:1).
About this color
#458CCB is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.119 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.032 away. Black text reads best on it, at 5.86:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.86:1 |
| White text | 3.57:1 |
Values
| HEX | #458CCB |
| RGB | rgb(69, 140, 203) |
| HSL | hsl(208, 56%, 53%) |
| OKLCH | oklch(62.3% 0.119 247.8) |
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 #458CCB | 3.57:1 | AA large text | Lc -68.6 | Content text, not long reading |
| Black text on #458CCB | 5.86:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #458CCB text on white | 3.57:1 | AA large text | Lc 63.1 | Content text, not long reading |
| #458CCB text on black | 5.86:1 | AA | Lc -38.5 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300
#A3C5E5
oklch(80.9% 0.058 247)
-
Step 400
400
#70A6D8
oklch(70.7% 0.093 247.4)
-
Step 500
500 (this color)
#458CCB
oklch(62.3% 0.119 247.8)
-
Step 600
600
#2578BB
oklch(55.7% 0.13 247.6)
-
Step 700
700
#1664A1
oklch(49% 0.121 247.9)
-
Step 800
800
#165282
oklch(42.7% 0.099 247.5)
-
Step 900
900
#1A4469
oklch(37.6% 0.079 248.2)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#458CCB 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) | #708ECE | 0.046 |
| Deuteranopia (no green cones) | #5E81CA | 0.036 |
| Tritanopia (no blue cones) | #009BA2 | 0.092 |
| Achromatopsia (no color) | #878787 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #458CCB
#458CCB
oklch(62.3% 0.119 247.8)
- #B67729
#B67729
oklch(62.2% 0.12 67.4)
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 #458CCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.032
- Water Blue #0E87CC ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.038
- Faded Blue #658CBB ΔE 0.038
- Steel Blue #4682B4 ΔE 0.040
- Off Blue #5684AE ΔE 0.045
- Dusty Blue #5A86AD ΔE 0.046
- Blue NCS #118AB2 ΔE 0.051
Use #458CCB 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.