#475BDD
Closest named color: Warm Blue (#4B57DB). oklch(53.3% 0.198 271.3), rgb(71, 91, 221).
Aa
White text reads best on this color (5.51:1).
About this color
#475BDD is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.198 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.010 away. White text reads best on it, at 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #475BDD |
| RGB | rgb(71, 91, 221) |
| HSL | hsl(232, 69%, 57%) |
| OKLCH | oklch(53.3% 0.198 271.3) |
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 #475BDD | 5.51:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #475BDD | 3.80:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #475BDD text on white | 5.51:1 | AA | Lc 77.0 | Fine for body text |
| #475BDD text on black | 3.80:1 | AA large text | Lc -24.7 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CDD8FB
oklch(88.5% 0.05 271.6)
-
Step 300
300
#ABBEFB
oklch(80.9% 0.089 270.9)
-
Step 400
400
#819AF9
oklch(70.8% 0.142 271.2)
-
Step 500
500
#637DF6
oklch(63.1% 0.182 271.2)
-
Step 600
600 (this color)
#475BDD
oklch(53.3% 0.198 271.3)
-
Step 700
700
#3E50C7
oklch(49% 0.185 271.3)
-
Step 800
800
#3343A1
oklch(42.8% 0.152 271.1)
-
Step 900
900
#2C3A80
oklch(37.8% 0.119 271.1)
-
Step 950
950
#1A224B
oklch(27% 0.076 272.1)
#475BDD 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) | #0070E1 | 0.058 |
| Deuteranopia (no green cones) | #0062DA | 0.045 |
| Tritanopia (no blue cones) | #007B93 | 0.161 |
| Achromatopsia (no color) | #696969 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475BDD
#475BDD
oklch(53.3% 0.198 271.3)
- #846900
#846900
oklch(53.2% 0.109 91)
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 #475BDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.010
- Neon Blue #4361EE ΔE 0.029
- Royal Blue #4169E1 ΔE 0.033
- Azul #1D5DEC ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.048
- Iris #6258C4 ΔE 0.052
- Slate Blue #6A5ACD ΔE 0.054
- Light Indigo #6D5ACF ΔE 0.057
Use #475BDD 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.