#3C59D3
Closest named color: Warm Blue (#4B57DB). oklch(51.6% 0.19 268.6), rgb(60, 89, 211).
Aa
White text reads best on this color (5.89:1).
About this color
#3C59D3 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.190 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 5.89:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.56:1 |
| White text | 5.89:1 |
Values
| HEX | #3C59D3 |
| RGB | rgb(60, 89, 211) |
| HSL | hsl(228, 63%, 53%) |
| OKLCH | oklch(51.6% 0.19 268.6) |
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 #3C59D3 | 5.89:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #3C59D3 | 3.56:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #3C59D3 text on white | 5.89:1 | AA | Lc 79.0 | Fine for body text |
| #3C59D3 text on black | 3.56:1 | AA large text | Lc -22.8 | 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
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FC
oklch(88.6% 0.051 268.1)
-
Step 300
300
#A8BFFD
oklch(81% 0.092 268.6)
-
Step 400
400
#7A9BFC
oklch(70.7% 0.147 268.3)
-
Step 500
500
#5B7EFA
oklch(63.1% 0.189 268.7)
-
Step 600
600
#4363E9
oklch(55.5% 0.205 268.6)
-
Step 700
700 (this color)
#3C59D3
oklch(51.6% 0.19 268.6)
-
Step 800
800
#2C43A4
oklch(42.6% 0.159 268.6)
-
Step 900
900
#273A82
oklch(37.7% 0.123 268.7)
-
Step 950
950
#17234C
oklch(27.1% 0.077 268.6)
#3C59D3 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) | #006BD7 | 0.048 |
| Deuteranopia (no green cones) | #005ED1 | 0.034 |
| Tritanopia (no blue cones) | #00778D | 0.152 |
| Achromatopsia (no color) | #646464 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C59D3
#3C59D3
oklch(51.6% 0.19 268.6)
- #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 #3C59D3, closest first.
No curated palette has a color within ΔE 0.04 of #3C59D3.
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 0.044
- Royal Blue #4169E1 ΔE 0.045
- Neon Blue #4361EE ΔE 0.047
- Iris #6258C4 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.059
- Slate Blue #6A5ACD ΔE 0.063
- Cerulean Blue #056EEE ΔE 0.064
Use #3C59D3 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.