#4661B8
Closest named color: French Blue (#436BAD). oklch(51.7% 0.14 268.2), rgb(70, 97, 184).
Aa
White text reads best on this color (5.73:1).
About this color
#4661B8 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.140 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.035 away. White text reads best on it, at 5.73:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.66:1 |
| White text | 5.73:1 |
Values
| HEX | #4661B8 |
| RGB | rgb(70, 97, 184) |
| HSL | hsl(226, 45%, 50%) |
| OKLCH | oklch(51.7% 0.14 268.2) |
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 #4661B8 | 5.73:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #4661B8 | 3.66:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #4661B8 text on white | 5.73:1 | AA | Lc 78.4 | Fine for body text |
| #4661B8 text on black | 3.66:1 | AA large text | Lc -23.4 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#AEC0EE
oklch(81% 0.068 268.2)
-
Step 400
400
#849EE5
oklch(70.8% 0.108 268.2)
-
Step 500
500
#6684DD
oklch(63.1% 0.138 268.2)
-
Step 600
600
#4E6CCB
oklch(55.7% 0.151 268.1)
-
Step 700
700 (this color)
#4661B8
oklch(51.7% 0.14 268.2)
-
Step 800
800
#34498E
oklch(42.6% 0.117 268.4)
-
Step 900
900
#2D3E71
oklch(37.7% 0.09 268)
-
Step 950
950
#1A2542
oklch(27% 0.056 266.9)
#4661B8 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) | #366CBB | 0.031 |
| Deuteranopia (no green cones) | #2261B6 | 0.033 |
| Tritanopia (no blue cones) | #007583 | 0.122 |
| Achromatopsia (no color) | #666666 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4661B8
#4661B8
oklch(51.7% 0.14 268.2)
- #816400
#816400
oklch(51.8% 0.106 88.7)
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 #4661B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.035
- Mid Blue #276AB3 ΔE 0.036
- Iris #6258C4 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.059
- Flat Blue #3C73A8 ΔE 0.060
- Windows Blue #3778BF ΔE 0.061
- Warm Blue #4B57DB ΔE 0.062
Use #4661B8 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.