#213396
Closest named color: Sapphire (#2138AB). oklch(37.8% 0.162 268.9), rgb(33, 51, 150).
Aa
White text reads best on this color (10.61:1).
About this color
#213396 is a dark, vivid blue. In OKLCH its lightness is 38%, its chroma 0.162 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.037 away. White text reads best on it, at 10.61:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #213396 |
| RGB | rgb(33, 51, 150) |
| HSL | hsl(231, 64%, 36%) |
| OKLCH | oklch(37.8% 0.162 268.9) |
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 #213396 | 10.61:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #213396 | 1.97:1 | Fails | Lc 10.0 | Not readable |
| #213396 text on white | 10.61:1 | AAA | Lc 93.9 | Preferred for body text |
| #213396 text on black | 1.97:1 | Fails | Lc -8.6 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#CAD8FF
oklch(88.4% 0.056 269.7)
-
Step 300
300
#A7BEFF
oklch(80.8% 0.096 269.2)
-
Step 400
400
#7A9AFF
oklch(70.7% 0.152 269)
-
Step 500
500
#5A7CFF
oklch(63% 0.198 269.1)
-
Step 600
600
#3D5AFF
oklch(55.6% 0.245 268.8)
-
Step 700
700
#2F40EC
oklch(49.1% 0.252 268.9)
-
Step 800
800
#2637BE
oklch(42.7% 0.208 268.9)
-
Step 900
900 (this color)
#213396
oklch(37.8% 0.162 268.9)
-
Step 950
950
#131F58
oklch(27% 0.104 269.1)
#213396 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) | #004499 | 0.042 |
| Deuteranopia (no green cones) | #003994 | 0.024 |
| Tritanopia (no blue cones) | #004D5F | 0.128 |
| Achromatopsia (no color) | #3E3E3E | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213396
#213396
oklch(37.8% 0.162 268.9)
- #523F00
#523F00
oklch(37.8% 0.077 89.3)
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 #213396, closest first.
No curated palette has a color within ΔE 0.04 of #213396.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.037
- Cobalt #1E488F ΔE 0.055
- Royal #0C1793 ΔE 0.063
- Indigo Blue #3A18B1 ΔE 0.064
- Twilight Blue #0A437A ΔE 0.066
- Blueberry #464196 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.068
- Ultramarine #2000B1 ΔE 0.073
Use #213396 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.