#475ECC
Closest named color: Warm Blue (#4B57DB). oklch(52.6% 0.172 270.5), rgb(71, 94, 204).
Aa
White text reads best on this color (5.61:1).
About this color
#475ECC is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.172 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.029 away. White text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.74:1 |
| White text | 5.61:1 |
Values
| HEX | #475ECC |
| RGB | rgb(71, 94, 204) |
| HSL | hsl(230, 57%, 54%) |
| OKLCH | oklch(52.6% 0.172 270.5) |
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 #475ECC | 5.61:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #475ECC | 3.74:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #475ECC text on white | 5.61:1 | AA | Lc 77.7 | Fine for body text |
| #475ECC text on black | 3.74:1 | AA large text | Lc -24.1 | 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
#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
#ADBFF3
oklch(80.9% 0.076 269.8)
-
Step 400
400
#839CEE
oklch(70.8% 0.124 270.1)
-
Step 500
500
#6681E8
oklch(63.2% 0.157 270.3)
-
Step 600
600 (this color)
#475ECC
oklch(52.6% 0.172 270.5)
-
Step 700
700
#4055BA
oklch(49% 0.16 270.5)
-
Step 800
800
#354696
oklch(42.6% 0.132 270.8)
-
Step 900
900
#2D3C78
oklch(37.7% 0.104 270.2)
-
Step 950
950
#1B2446
oklch(27.1% 0.064 270.5)
#475ECC 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) | #0C6ED0 | 0.051 |
| Deuteranopia (no green cones) | #0062CA | 0.045 |
| Tritanopia (no blue cones) | #00788C | 0.142 |
| Achromatopsia (no color) | #686868 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475ECC
#475ECC
oklch(52.6% 0.172 270.5)
- #826700
#826700
oklch(52.6% 0.107 90.6)
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 #475ECC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.029
- Iris #6258C4 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.048
- Neon Blue #4361EE ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.053
- Mid Blue #276AB3 ΔE 0.059
Use #475ECC 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.