#3A77EE
Closest named color: Clear Blue (#247AFD). oklch(59.5% 0.191 262), rgb(58, 119, 238).
Aa
Black text reads best on this color (5.05:1).
About this color
#3A77EE is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.191 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.025 away. Black text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.191) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #3A77EE |
| RGB | rgb(58, 119, 238) |
| HSL | hsl(220, 84%, 58%) |
| OKLCH | oklch(59.5% 0.191 262) |
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 #3A77EE | 4.15:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #3A77EE | 5.05:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #3A77EE text on white | 4.15:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #3A77EE text on black | 5.05:1 | AA | Lc -33.5 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFC
oklch(88.5% 0.051 262.1)
-
Step 300
300
#A0C1FD
oklch(80.9% 0.093 262.1)
-
Step 400
400
#6C9EFD
oklch(70.6% 0.15 262.2)
-
Step 500
500 (this color)
#3A77EE
oklch(59.5% 0.191 262)
-
Step 600
600
#2768EA
oklch(55.6% 0.208 262.1)
-
Step 700
700
#1A56CB
oklch(49.1% 0.192 261.9)
-
Step 800
800
#1847A4
oklch(42.7% 0.159 262)
-
Step 900
900
#193D82
oklch(37.7% 0.124 261.8)
-
Step 950
950
#10244C
oklch(26.9% 0.079 262.4)
#3A77EE 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) | #2C85F2 | 0.035 |
| Deuteranopia (no green cones) | #0075EC | 0.027 |
| Tritanopia (no blue cones) | #0094A7 | 0.150 |
| Achromatopsia (no color) | #7C7C7C | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A77EE
#3A77EE
oklch(59.5% 0.191 262)
- #A37600
#A37600
oklch(59.5% 0.123 81.9)
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 #3A77EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.025
- Cerulean Blue #056EEE ΔE 0.037
- Royal Blue #4169E1 ΔE 0.038
- Neon Blue #4361EE ΔE 0.052
- Cornflower #6A79F7 ΔE 0.054
- Bright Blue #0165FC ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.064
- Soft Blue #6488EA ΔE 0.066
Use #3A77EE 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.