#458DBB
Closest named color: Cool Blue (#4984B8). oklch(61.7% 0.1 239.3), rgb(69, 141, 187).
Aa
Black text reads best on this color (5.78:1).
About this color
#458DBB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.100 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.025 away. Black text reads best on it, at 5.78:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.78:1 |
| White text | 3.63:1 |
Values
| HEX | #458DBB |
| RGB | rgb(69, 141, 187) |
| HSL | hsl(203, 46%, 50%) |
| OKLCH | oklch(61.7% 0.1 239.3) |
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 #458DBB | 3.63:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #458DBB | 5.78:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #458DBB text on white | 3.63:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #458DBB text on black | 5.78:1 | AA | Lc -38.0 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A4C6DD
oklch(80.9% 0.049 237.8)
-
Step 400
400
#72A8CD
oklch(70.8% 0.079 239.3)
-
Step 500
500 (this color)
#458DBB
oklch(61.7% 0.1 239.3)
-
Step 600
600
#277BAC
oklch(55.6% 0.109 239.2)
-
Step 700
700
#186794
oklch(49% 0.102 239.8)
-
Step 800
800
#185478
oklch(42.6% 0.084 240)
-
Step 900
900
#1B4661
oklch(37.7% 0.066 239.5)
-
Step 950
950
#112939
oklch(27% 0.042 240.1)
#458DBB 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) | #788DBD | 0.055 |
| Deuteranopia (no green cones) | #6881BA | 0.046 |
| Tritanopia (no blue cones) | #00999D | 0.073 |
| Achromatopsia (no color) | #868686 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #458DBB
#458DBB
oklch(61.7% 0.1 239.3)
- #B27643
#B27643
oklch(61.8% 0.101 59.6)
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 #458DBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.025
- Dusty Blue #5A86AD ΔE 0.029
- Off Blue #5684AE ΔE 0.029
- Steel Blue #4682B4 ΔE 0.031
- Faded Blue #658CBB ΔE 0.031
- Blue NCS #118AB2 ΔE 0.034
- Water Blue #0E87CC ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.058
Use #458DBB 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.