#4F61B4
Closest named color: French Blue (#436BAD). oklch(52% 0.132 271.9), rgb(79, 97, 180).
Aa
White text reads best on this color (5.67:1).
About this color
#4F61B4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.132 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.033 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #4F61B4 |
| RGB | rgb(79, 97, 180) |
| HSL | hsl(229, 40%, 51%) |
| OKLCH | oklch(52% 0.132 271.9) |
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 #4F61B4 | 5.67:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #4F61B4 | 3.70:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #4F61B4 text on white | 5.67:1 | AA | Lc 78.2 | Fine for body text |
| #4F61B4 text on black | 3.70:1 | AA large text | Lc -23.6 | 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 700.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B2BFEB
oklch(81% 0.064 272)
-
Step 400
400
#8A9DE1
oklch(70.8% 0.102 271.6)
-
Step 500
500
#6E83D8
oklch(63.1% 0.13 271.7)
-
Step 600
600
#576BC5
oklch(55.6% 0.141 271.7)
-
Step 700
700 (this color)
#4F61B4
oklch(52% 0.132 271.9)
-
Step 800
800
#3B498A
oklch(42.8% 0.108 271.9)
-
Step 900
900
#323D6E
oklch(37.6% 0.085 272.2)
-
Step 950
950
#1D2441
oklch(26.9% 0.055 272)
#4F61B4 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) | #3B6BB7 | 0.032 |
| Deuteranopia (no green cones) | #2E63B2 | 0.035 |
| Tritanopia (no blue cones) | #157382 | 0.117 |
| Achromatopsia (no color) | #676767 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F61B4
#4F61B4
oklch(52% 0.132 271.9)
- #7F6600
#7F6600
oklch(52% 0.106 91.9)
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 #4F61B4, closest first.
No curated palette has a color within ΔE 0.04 of #4F61B4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.033
- Mid Blue #276AB3 ΔE 0.043
- Iris #6258C4 ΔE 0.043
- Dusky Blue #475F94 ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.058
- Flat Blue #3C73A8 ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.062
Use #4F61B4 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.