#4660CC
Closest named color: Warm Blue (#4B57DB). oklch(52.9% 0.17 269.6), rgb(70, 96, 204).
Aa
White text reads best on this color (5.51:1).
About this color
#4660CC is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.170 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.032 away. White text reads best on it, at 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #4660CC |
| RGB | rgb(70, 96, 204) |
| HSL | hsl(228, 57%, 54%) |
| OKLCH | oklch(52.9% 0.17 269.6) |
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 #4660CC | 5.51:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #4660CC | 3.80:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #4660CC text on white | 5.51:1 | AA | Lc 77.2 | Fine for body text |
| #4660CC text on black | 3.80:1 | AA large text | Lc -24.6 | 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 600.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F6
oklch(88.6% 0.042 269)
-
Step 300
300
#ADBFF3
oklch(80.9% 0.076 269.8)
-
Step 400
400
#829CED
oklch(70.6% 0.123 269.6)
-
Step 500
500
#6481E7
oklch(63% 0.157 269.6)
-
Step 600
600 (this color)
#4660CC
oklch(52.9% 0.17 269.6)
-
Step 700
700
#3E56B9
oklch(49.1% 0.158 269.5)
-
Step 800
800
#334795
oklch(42.6% 0.13 269.4)
-
Step 900
900
#2C3C77
oklch(37.6% 0.102 269.5)
-
Step 950
950
#1A2446
oklch(27.1% 0.065 269.4)
#4660CC 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) | #176FD0 | 0.046 |
| Deuteranopia (no green cones) | #0063CA | 0.044 |
| Tritanopia (no blue cones) | #007A8D | 0.141 |
| Achromatopsia (no color) | #696969 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4660CC
#4660CC
oklch(52.9% 0.17 269.6)
- #846700
#846700
oklch(52.8% 0.108 89.2)
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 #4660CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.032
- Royal Blue #4169E1 ΔE 0.037
- Iris #6258C4 ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.050
- Neon Blue #4361EE ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.054
- Mid Blue #276AB3 ΔE 0.056
Use #4660CC 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.