#3956DA
Closest named color: Warm Blue (#4B57DB). oklch(51.5% 0.204 268.5), rgb(57, 86, 218).
Aa
White text reads best on this color (5.97:1).
About this color
#3956DA is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.204 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.022 away. White text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.204) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #3956DA |
| RGB | rgb(57, 86, 218) |
| HSL | hsl(229, 69%, 54%) |
| OKLCH | oklch(51.5% 0.204 268.5) |
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 #3956DA | 5.97:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #3956DA | 3.51:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #3956DA text on white | 5.97:1 | AA | Lc 79.2 | Fine for body text |
| #3956DA text on black | 3.51:1 | AA large text | Lc -22.6 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFE
oklch(93.7% 0.028 268.4)
-
Step 200
200
#CAD9FE
oklch(88.6% 0.054 267.9)
-
Step 300
300
#A7BFFF
oklch(81% 0.095 268.4)
-
Step 400
400
#799AFF
oklch(70.6% 0.153 268.6)
-
Step 500
500
#597DFF
oklch(63.2% 0.197 268.6)
-
Step 600
600
#4060F1
oklch(55.5% 0.22 268.5)
-
Step 700
700 (this color)
#3956DA
oklch(51.5% 0.204 268.5)
-
Step 800
800
#2A41AA
oklch(42.7% 0.17 268.5)
-
Step 900
900
#253986
oklch(37.7% 0.131 268.4)
-
Step 950
950
#16224F
oklch(27% 0.084 268.9)
#3956DA 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) | #006BDE | 0.052 |
| Deuteranopia (no green cones) | #005CD7 | 0.032 |
| Tritanopia (no blue cones) | #007890 | 0.161 |
| Achromatopsia (no color) | #636363 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3956DA
#3956DA
oklch(51.5% 0.204 268.5)
- #806300
#806300
oklch(51.4% 0.105 88.5)
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 #3956DA, closest first.
No curated palette has a color within ΔE 0.04 of #3956DA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.022
- Azul #1D5DEC ΔE 0.035
- Neon Blue #4361EE ΔE 0.043
- Royal Blue #4169E1 ΔE 0.048
- Blue Blue #2242C7 ΔE 0.063
- Cerulean Blue #056EEE ΔE 0.063
- Bright Blue #0165FC ΔE 0.064
- Electric Blue #0652FF ΔE 0.064
Use #3956DA 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.