#0452AE
Closest named color: Cobalt (#1E488F). oklch(45.5% 0.162 257.5), rgb(4, 82, 174).
Aa
White text reads best on this color (7.43:1).
About this color
#0452AE is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.162 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.054 away. White text reads best on it, at 7.43:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.82:1 |
| White text | 7.43:1 |
Values
| HEX | #0452AE |
| RGB | rgb(4, 82, 174) |
| HSL | hsl(212, 96%, 35%) |
| OKLCH | oklch(45.5% 0.162 257.5) |
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 #0452AE | 7.43:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #0452AE | 2.82:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #0452AE text on white | 7.43:1 | AAA | Lc 85.1 | Fine for body text |
| #0452AE text on black | 2.82:1 | Fails | Lc -16.9 | 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 800.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFC
oklch(88.5% 0.052 257.4)
-
Step 300
300
#9AC3FE
oklch(80.9% 0.095 257.4)
-
Step 400
400
#60A1FD
oklch(70.7% 0.151 257.3)
-
Step 500
500
#2F86FB
oklch(63.1% 0.193 257.4)
-
Step 600
600
#006DE5
oklch(55.6% 0.201 257.4)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800 (this color)
#0452AE
oklch(45.5% 0.162 257.5)
-
Step 900
900
#0A3F83
oklch(37.8% 0.126 257.5)
-
Step 950
950
#09254C
oklch(26.9% 0.08 257.7)
#0452AE 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) | #085DB1 | 0.030 |
| Deuteranopia (no green cones) | #004EAC | 0.011 |
| Tritanopia (no blue cones) | #006978 | 0.122 |
| Achromatopsia (no color) | #555555 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0452AE
#0452AE
oklch(45.5% 0.162 257.5)
- #744F00
#744F00
oklch(45.7% 0.095 77.7)
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 #0452AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.054
- Blue Blue #2242C7 ΔE 0.055
- Dusk Blue #26538D ΔE 0.056
- Sapphire #2138AB ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.067
- Light Navy #155084 ΔE 0.068
- Mid Blue #276AB3 ΔE 0.072
- Blueberry #464196 ΔE 0.073
Use #0452AE 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.