#3F60CA
Closest named color: Warm Blue (#4B57DB). oklch(52.4% 0.169 267.3), rgb(63, 96, 202).
Aa
White text reads best on this color (5.61:1).
About this color
#3F60CA is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.169 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.036 away. White text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.73:1 |
| White text | 5.61:1 |
Values
| HEX | #3F60CA |
| RGB | rgb(63, 96, 202) |
| HSL | hsl(226, 57%, 52%) |
| OKLCH | oklch(52.4% 0.169 267.3) |
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 #3F60CA | 5.61:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #3F60CA | 3.73:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #3F60CA text on white | 5.61:1 | AA | Lc 77.7 | Fine for body text |
| #3F60CA text on black | 3.73:1 | AA large text | Lc -24.1 | 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
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F6
oklch(88.5% 0.042 267.7)
-
Step 300
300
#ABC0F3
oklch(81% 0.076 267.3)
-
Step 400
400
#7F9DED
oklch(70.7% 0.122 267.6)
-
Step 500
500
#6083E7
oklch(63.2% 0.155 267.4)
-
Step 600
600 (this color)
#3F60CA
oklch(52.4% 0.169 267.3)
-
Step 700
700
#3958B9
oklch(49.2% 0.157 267.1)
-
Step 800
800
#2F4895
oklch(42.6% 0.13 267.2)
-
Step 900
900
#2A3D77
oklch(37.7% 0.102 267.7)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#3F60CA 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) | #196ECE | 0.040 |
| Deuteranopia (no green cones) | #0061C8 | 0.037 |
| Tritanopia (no blue cones) | #00798C | 0.136 |
| Achromatopsia (no color) | #676767 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F60CA
#3F60CA
oklch(52.4% 0.169 267.3)
- #846500
#846500
oklch(52.3% 0.107 87.5)
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 #3F60CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.036
- Royal Blue #4169E1 ΔE 0.041
- Iris #6258C4 ΔE 0.047
- Mid Blue #276AB3 ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.052
- Neon Blue #4361EE ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.057
- French Blue #436BAD ΔE 0.058
Use #3F60CA 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.