#3950BD
Closest named color: Blue Blue (#2242C7). oklch(47.9% 0.173 269.7), rgb(57, 80, 189).
Aa
White text reads best on this color (6.87:1).
About this color
#3950BD is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.173 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.046 away. White text reads best on it, at 6.87:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.05:1 |
| White text | 6.87:1 |
Values
| HEX | #3950BD |
| RGB | rgb(57, 80, 189) |
| HSL | hsl(230, 54%, 48%) |
| OKLCH | oklch(47.9% 0.173 269.7) |
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 #3950BD | 6.87:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #3950BD | 3.05:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #3950BD text on white | 6.87:1 | AA | Lc 83.3 | Fine for body text |
| #3950BD text on black | 3.05:1 | AA large text | Lc -18.7 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ABBFF8
oklch(81% 0.084 269.5)
-
Step 400
400
#809BF4
oklch(70.7% 0.134 269.9)
-
Step 500
500
#6180F0
oklch(63.2% 0.171 269.4)
-
Step 600
600
#4A66DE
oklch(55.6% 0.185 269.5)
-
Step 700
700 (this color)
#3950BD
oklch(47.9% 0.173 269.7)
-
Step 800
800
#31459C
oklch(42.6% 0.143 269.6)
-
Step 900
900
#2B3B7C
oklch(37.7% 0.112 269.9)
-
Step 950
950
#192349
oklch(27% 0.072 270)
#3950BD 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) | #0060C1 | 0.046 |
| Deuteranopia (no green cones) | #0054BB | 0.036 |
| Tritanopia (no blue cones) | #006B7E | 0.141 |
| Achromatopsia (no color) | #5A5A5A | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3950BD
#3950BD
oklch(47.9% 0.173 269.7)
- #735A00
#735A00
oklch(47.9% 0.098 89.9)
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 #3950BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.046
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.055
- Warm Blue #4B57DB ΔE 0.056
- Blurple #5539CC ΔE 0.061
- Iris #6258C4 ΔE 0.063
- Bluey Purple #6241C7 ΔE 0.066
- Blueberry #464196 ΔE 0.071
Use #3950BD 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.