#475CBF
Closest named color: Iris (#6258C4). oklch(51.2% 0.156 270.9), rgb(71, 92, 191).
Aa
White text reads best on this color (5.91:1).
About this color
#475CBF is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.156 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.039 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #475CBF |
| RGB | rgb(71, 92, 191) |
| HSL | hsl(230, 48%, 51%) |
| OKLCH | oklch(51.2% 0.156 270.9) |
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 #475CBF | 5.91:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #475CBF | 3.55:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #475CBF text on white | 5.91:1 | AA | Lc 79.3 | Fine for body text |
| #475CBF text on black | 3.55:1 | AA large text | Lc -22.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CED8F6
oklch(88.4% 0.043 270.9)
-
Step 300
300
#AEBFF2
oklch(80.9% 0.075 270.3)
-
Step 400
400
#859CEC
oklch(70.8% 0.12 270.9)
-
Step 500
500
#6881E6
oklch(63.2% 0.154 271)
-
Step 600
600
#5068D4
oklch(55.6% 0.168 270.6)
-
Step 700
700 (this color)
#475CBF
oklch(51.2% 0.156 270.9)
-
Step 800
800
#364795
oklch(42.8% 0.129 270.8)
-
Step 900
900
#2E3C77
oklch(37.7% 0.102 270.8)
-
Step 950
950
#1B2445
oklch(27.1% 0.063 270.3)
#475CBF 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) | #216AC3 | 0.044 |
| Deuteranopia (no green cones) | #005FBD | 0.047 |
| Tritanopia (no blue cones) | #007384 | 0.133 |
| Achromatopsia (no color) | #646464 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475CBF
#475CBF
oklch(51.2% 0.156 270.9)
- #7D6300
#7D6300
oklch(51.1% 0.104 90.7)
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 #475CBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.039
- Warm Blue #4B57DB ΔE 0.046
- Mid Blue #276AB3 ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.053
- French Blue #436BAD ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.054
- Royal Blue #4169E1 ΔE 0.059
- Light Indigo #6D5ACF ΔE 0.060
Use #475CBF 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.