#3D4FB0
Closest named color: Blueberry (#464196). oklch(46.9% 0.155 271.2), rgb(61, 79, 176).
Aa
White text reads best on this color (7.13:1).
About this color
#3D4FB0 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.155 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.053 away. White text reads best on it, at 7.13:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.94:1 |
| White text | 7.13:1 |
Values
| HEX | #3D4FB0 |
| RGB | rgb(61, 79, 176) |
| HSL | hsl(231, 49%, 46%) |
| OKLCH | oklch(46.9% 0.155 271.2) |
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 #3D4FB0 | 7.13:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #3D4FB0 | 2.94:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #3D4FB0 text on white | 7.13:1 | AAA | Lc 84.4 | Fine for body text |
| #3D4FB0 text on black | 2.94:1 | Fails | Lc -17.6 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBFF2
oklch(81% 0.074 271.1)
-
Step 400
400
#859CEC
oklch(70.8% 0.12 270.9)
-
Step 500
500
#6881E5
oklch(63.1% 0.153 270.9)
-
Step 600
600
#5168D3
oklch(55.6% 0.166 271)
-
Step 700
700 (this color)
#3D4FB0
oklch(46.9% 0.155 271.2)
-
Step 800
800
#374794
oklch(42.8% 0.127 271.2)
-
Step 900
900
#2F3C76
oklch(37.7% 0.1 271.4)
-
Step 950
950
#1B2445
oklch(27.1% 0.063 270.3)
#3D4FB0 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) | #025DB3 | 0.047 |
| Deuteranopia (no green cones) | #0053AE | 0.042 |
| Tritanopia (no blue cones) | #006678 | 0.128 |
| Achromatopsia (no color) | #585858 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4FB0
#3D4FB0
oklch(46.9% 0.155 271.2)
- #6F5800
#6F5800
oklch(47% 0.096 91.1)
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 #3D4FB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.053
- Blue Blue #2242C7 ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.062
- Majorelle Blue #3F37C9 ΔE 0.064
- Twilight #4E518B ΔE 0.065
- Dusk Blue #26538D ΔE 0.065
- Iris #6258C4 ΔE 0.068
Use #3D4FB0 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.