#2470DE
Closest named color: Royal Blue (#4169E1). oklch(56.2% 0.183 258.6), rgb(36, 112, 222).
Aa
White text reads best on this color (4.72:1).
About this color
#2470DE is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.183 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.026 away. White text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #2470DE |
| RGB | rgb(36, 112, 222) |
| HSL | hsl(215, 74%, 51%) |
| OKLCH | oklch(56.2% 0.183 258.6) |
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 #2470DE | 4.72:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #2470DE | 4.44:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #2470DE text on white | 4.72:1 | AA | Lc 72.2 | Content text, not long reading |
| #2470DE text on black | 4.44:1 | AA large text | Lc -29.5 | 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 600.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF8
oklch(88.6% 0.046 257.6)
-
Step 300
300
#A0C2F6
oklch(80.8% 0.083 258.7)
-
Step 400
400
#6CA1F2
oklch(70.7% 0.132 258.6)
-
Step 500
500
#4387ED
oklch(63% 0.168 258.5)
-
Step 600
600 (this color)
#2470DE
oklch(56.2% 0.183 258.6)
-
Step 700
700
#145BBF
oklch(49.1% 0.171 258.7)
-
Step 800
800
#144B9A
oklch(42.6% 0.141 258.6)
-
Step 900
900
#18407B
oklch(37.8% 0.11 258.4)
-
Step 950
950
#0F2648
oklch(27.1% 0.07 258.2)
#2470DE 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) | #2A7CE2 | 0.032 |
| Deuteranopia (no green cones) | #006CDC | 0.018 |
| Tritanopia (no blue cones) | #008B9C | 0.141 |
| Achromatopsia (no color) | #737373 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2470DE
#2470DE
oklch(56.2% 0.183 258.6)
- #9A6B00
#9A6B00
oklch(56.2% 0.117 78.3)
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 #2470DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.026
- Cerulean Blue #056EEE ΔE 0.027
- Neon Blue #4361EE ΔE 0.048
- Clear Blue #247AFD ΔE 0.052
- Azul #1D5DEC ΔE 0.052
- Bright Blue #0165FC ΔE 0.055
- Windows Blue #3778BF ΔE 0.057
- Warm Blue #4B57DB ΔE 0.063
Use #2470DE 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.