#3D5BCE
Closest named color: Warm Blue (#4B57DB). oklch(51.6% 0.181 268.3), rgb(61, 91, 206).
Aa
White text reads best on this color (5.85:1).
About this color
#3D5BCE is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.181 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.027 away. White text reads best on it, at 5.85:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #3D5BCE |
| RGB | rgb(61, 91, 206) |
| HSL | hsl(228, 60%, 52%) |
| OKLCH | oklch(51.6% 0.181 268.3) |
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 #3D5BCE | 5.85:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #3D5BCE | 3.58:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #3D5BCE text on white | 5.85:1 | AA | Lc 78.8 | Fine for body text |
| #3D5BCE text on black | 3.58:1 | AA large text | Lc -23.0 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300
#A9BFFA
oklch(80.9% 0.087 268.6)
-
Step 400
400
#7C9BF8
oklch(70.6% 0.141 268.7)
-
Step 500
500
#5C7FF4
oklch(63% 0.179 268.4)
-
Step 600
600
#4465E3
oklch(55.5% 0.195 268.2)
-
Step 700
700 (this color)
#3D5BCE
oklch(51.6% 0.181 268.3)
-
Step 800
800
#2D45A0
oklch(42.8% 0.15 268.2)
-
Step 900
900
#283B7F
oklch(37.7% 0.117 268.5)
-
Step 950
950
#17234A
oklch(26.9% 0.074 268.3)
#3D5BCE 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) | #006CD2 | 0.048 |
| Deuteranopia (no green cones) | #005ECC | 0.035 |
| Tritanopia (no blue cones) | #00778B | 0.147 |
| Achromatopsia (no color) | #656565 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5BCE
#3D5BCE
oklch(51.6% 0.181 268.3)
- #816300
#816300
oklch(51.6% 0.105 87.8)
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 #3D5BCE, closest first.
No curated palette has a color within ΔE 0.04 of #3D5BCE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.027
- Royal Blue #4169E1 ΔE 0.045
- Iris #6258C4 ΔE 0.050
- Azul #1D5DEC ΔE 0.051
- Neon Blue #4361EE ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.060
- Mid Blue #276AB3 ΔE 0.063
Use #3D5BCE 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.