#3D5FD8
Closest named color: Warm Blue (#4B57DB). oklch(53.2% 0.19 267.6), rgb(61, 95, 216).
Aa
White text reads best on this color (5.48:1).
About this color
#3D5FD8 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.190 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.023 away. White text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #3D5FD8 |
| RGB | rgb(61, 95, 216) |
| HSL | hsl(227, 67%, 54%) |
| OKLCH | oklch(53.2% 0.19 267.6) |
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 #3D5FD8 | 5.48:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #3D5FD8 | 3.82:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #3D5FD8 text on white | 5.48:1 | AA | Lc 76.9 | Fine for body text |
| #3D5FD8 text on black | 3.82:1 | AA large text | Lc -24.9 | 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 600.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300
#A8BFF9
oklch(80.8% 0.086 267.7)
-
Step 400
400
#7B9CF6
oklch(70.7% 0.137 267.6)
-
Step 500
500
#5B81F2
oklch(63.2% 0.174 267.3)
-
Step 600
600 (this color)
#3D5FD8
oklch(53.2% 0.19 267.6)
-
Step 700
700
#3654C3
oklch(49% 0.177 267.8)
-
Step 800
800
#2C469E
oklch(42.7% 0.146 267.4)
-
Step 900
900
#273C7D
oklch(37.7% 0.113 267.3)
-
Step 950
950
#172449
oklch(27.1% 0.071 267.1)
#3D5FD8 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) | #0070DC | 0.047 |
| Deuteranopia (no green cones) | #0062D6 | 0.033 |
| Tritanopia (no blue cones) | #007D92 | 0.152 |
| Achromatopsia (no color) | #696969 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5FD8
#3D5FD8
oklch(53.2% 0.19 267.6)
- #876700
#876700
oklch(53.1% 0.109 87.2)
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 #3D5FD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.023
- Royal Blue #4169E1 ΔE 0.028
- Neon Blue #4361EE ΔE 0.035
- Azul #1D5DEC ΔE 0.039
- Cerulean Blue #056EEE ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.053
- Iris #6258C4 ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.060
Use #3D5FD8 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.