#4668DD
Closest named color: Royal Blue (#4169E1). oklch(55.7% 0.183 267.8), rgb(70, 104, 221).
Aa
White text reads best on this color (4.90:1).
About this color
#4668DD is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.183 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.008 away. White text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #4668DD |
| RGB | rgb(70, 104, 221) |
| HSL | hsl(226, 69%, 57%) |
| OKLCH | oklch(55.7% 0.183 267.8) |
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 #4668DD | 4.90:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #4668DD | 4.28:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #4668DD text on white | 4.90:1 | AA | Lc 73.6 | Content text, not long reading |
| #4668DD text on black | 4.28:1 | AA large text | Lc -28.1 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#AABFF7
oklch(80.9% 0.083 268.6)
-
Step 400
400
#7D9CF3
oklch(70.6% 0.132 268.1)
-
Step 500
500
#5E81EE
oklch(63.1% 0.168 268)
-
Step 600
600 (this color)
#4668DD
oklch(55.7% 0.183 267.8)
-
Step 700
700
#3855BF
oklch(49% 0.17 268)
-
Step 800
800
#2E469B
oklch(42.6% 0.142 268)
-
Step 900
900
#293C7B
oklch(37.7% 0.11 268.2)
-
Step 950
950
#182448
oklch(27.1% 0.069 267.8)
#4668DD 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) | #1478E1 | 0.046 |
| Deuteranopia (no green cones) | #006ADB | 0.040 |
| Tritanopia (no blue cones) | #008498 | 0.149 |
| Achromatopsia (no color) | #717171 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4668DD
#4668DD
oklch(55.7% 0.183 267.8)
- #906F00
#906F00
oklch(55.9% 0.114 87.9)
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 #4668DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.008
- Neon Blue #4361EE ΔE 0.032
- Warm Blue #4B57DB ΔE 0.039
- Cerulean Blue #056EEE ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.046
- Azul #1D5DEC ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.057
- Iris #6258C4 ΔE 0.059
Use #4668DD 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.