#3E7AE4
Closest named color: Clear Blue (#247AFD). oklch(59.5% 0.173 260.8), rgb(62, 122, 228).
Aa
Black text reads best on this color (5.10:1).
About this color
#3E7AE4 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.173 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.040 away. Black text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #3E7AE4 |
| RGB | rgb(62, 122, 228) |
| HSL | hsl(218, 75%, 57%) |
| OKLCH | oklch(59.5% 0.173 260.8) |
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 #3E7AE4 | 4.11:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #3E7AE4 | 5.10:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #3E7AE4 text on white | 4.11:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #3E7AE4 text on black | 5.10:1 | AA | Lc -33.8 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAF9
oklch(88.5% 0.047 261.4)
-
Step 300
300
#A2C2F8
oklch(81% 0.084 260.7)
-
Step 400
400
#6FA0F4
oklch(70.7% 0.135 260.7)
-
Step 500
500 (this color)
#3E7AE4
oklch(59.5% 0.173 260.8)
-
Step 600
600
#2B6CDF
oklch(55.6% 0.188 260.9)
-
Step 700
700
#1E59C2
oklch(49.1% 0.176 261)
-
Step 800
800
#1B4A9D
oklch(42.8% 0.145 260.8)
-
Step 900
900
#1C3F7C
oklch(37.8% 0.111 260.6)
-
Step 950
950
#112549
oklch(27% 0.072 261.1)
#3E7AE4 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) | #4185E8 | 0.029 |
| Deuteranopia (no green cones) | #1776E2 | 0.027 |
| Tritanopia (no blue cones) | #0093A4 | 0.136 |
| Achromatopsia (no color) | #7D7D7D | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E7AE4
#3E7AE4
oklch(59.5% 0.173 260.8)
- #A47500
#A47500
oklch(59.4% 0.123 80.5)
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 #3E7AE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.040
- Royal Blue #4169E1 ΔE 0.042
- Cerulean Blue #056EEE ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.055
- Cornflower #6A79F7 ΔE 0.056
- Soft Blue #6488EA ΔE 0.057
- Windows Blue #3778BF ΔE 0.058
- Water Blue #0E87CC ΔE 0.059
Use #3E7AE4 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.