#213475
Closest named color: Marine Blue (#01386A). oklch(35% 0.114 267.8), rgb(33, 52, 117).
Aa
White text reads best on this color (11.58:1).
About this color
#213475 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.114 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.033 away. White text reads best on it, at 11.58:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.81:1 |
| White text | 11.58:1 |
Values
| HEX | #213475 |
| RGB | rgb(33, 52, 117) |
| HSL | hsl(226, 56%, 29%) |
| OKLCH | oklch(35% 0.114 267.8) |
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 #213475 | 11.58:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #213475 | 1.81:1 | Fails | Lc 7.6 | Not readable |
| #213475 text on white | 11.58:1 | AAA | Lc 96.3 | Preferred for body text |
| #213475 text on black | 1.81:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300
#A9BFF9
oklch(80.9% 0.086 268.4)
-
Step 400
400
#7C9CF6
oklch(70.7% 0.137 268)
-
Step 500
500
#5C80F2
oklch(63% 0.175 267.9)
-
Step 600
600
#4466E1
oklch(55.5% 0.191 267.9)
-
Step 700
700
#3654C3
oklch(49% 0.177 267.8)
-
Step 800
800
#2D469E
oklch(42.8% 0.146 267.8)
-
Step 900
900 (this color)
#213475
oklch(35% 0.114 267.8)
-
Step 950
950
#172349
oklch(26.8% 0.072 268.1)
#213475 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) | #073D77 | 0.029 |
| Deuteranopia (no green cones) | #003574 | 0.025 |
| Tritanopia (no blue cones) | #00444F | 0.094 |
| Achromatopsia (no color) | #393939 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213475
#213475
oklch(35% 0.114 267.8)
- #4A3800
#4A3800
oklch(35.1% 0.072 88.5)
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 #213475, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.033
- Twilight Blue #0A437A ΔE 0.043
- Marine #042E60 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.054
- Cobalt #1E488F ΔE 0.067
- Midnight Blue #191970 ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.078
Use #213475 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.