#0063AE
Closest named color: Mid Blue (#276AB3). oklch(49.4% 0.142 250.6), rgb(0, 99, 174).
Aa
White text reads best on this color (6.18:1).
About this color
#0063AE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.142 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.029 away. White text reads best on it, at 6.18:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.39:1 |
| White text | 6.18:1 |
Values
| HEX | #0063AE |
| RGB | rgb(0, 99, 174) |
| HSL | hsl(206, 100%, 34%) |
| OKLCH | oklch(49.4% 0.142 250.6) |
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 #0063AE | 6.18:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #0063AE | 3.39:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #0063AE text on white | 6.18:1 | AA | Lc 80.2 | Fine for body text |
| #0063AE text on black | 3.39:1 | AA large text | Lc -21.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF2
oklch(88.6% 0.038 249.5)
-
Step 300
300
#A0C5EC
oklch(81% 0.068 250)
-
Step 400
400
#6AA5E3
oklch(70.7% 0.11 250.8)
-
Step 500
500
#3E8DDB
oklch(63.1% 0.141 250.8)
-
Step 600
600
#1275C8
oklch(55.5% 0.153 250.7)
-
Step 700
700 (this color)
#0063AE
oklch(49.4% 0.142 250.6)
-
Step 800
800
#09518C
oklch(42.8% 0.117 250.3)
-
Step 900
900
#144370
oklch(37.6% 0.092 251)
-
Step 950
950
#0E2842
oklch(27.1% 0.058 250.8)
#0063AE 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) | #3C69B1 | 0.041 |
| Deuteranopia (no green cones) | #1B5BAD | 0.022 |
| Tritanopia (no blue cones) | #007580 | 0.102 |
| Achromatopsia (no color) | #616161 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0063AE
#0063AE
oklch(49.4% 0.142 250.6)
- #875500
#875500
oklch(49.4% 0.107 70.5)
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 #0063AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.029
- Peacock Blue #016795 ΔE 0.044
- French Blue #436BAD ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.053
- Ocean Blue #03719C ΔE 0.055
- Dusky Blue #475F94 ΔE 0.059
- Denim #3B638C ΔE 0.062
- Light Navy Blue #2E5A88 ΔE 0.063
Use #0063AE 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.