#213EA5
Closest named color: Sapphire (#2138AB). oklch(41.2% 0.169 266.5), rgb(33, 62, 165).
Aa
White text reads best on this color (9.14:1).
About this color
#213EA5 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.169 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.016 away. White text reads best on it, at 9.14:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #213EA5 |
| RGB | rgb(33, 62, 165) |
| HSL | hsl(227, 67%, 39%) |
| OKLCH | oklch(41.2% 0.169 266.5) |
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 #213EA5 | 9.14:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #213EA5 | 2.29:1 | Fails | Lc 13.6 | Not readable |
| #213EA5 text on white | 9.14:1 | AAA | Lc 90.4 | Preferred for body text |
| #213EA5 text on black | 2.29:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A4BFFF
oklch(80.8% 0.096 266.6)
-
Step 400
400
#759BFF
oklch(70.6% 0.153 266.8)
-
Step 500
500
#527EFF
oklch(63% 0.198 266.5)
-
Step 600
600
#3862F1
oklch(55.5% 0.22 266.5)
-
Step 700
700
#2C50D2
oklch(49.1% 0.204 266.5)
-
Step 800
800 (this color)
#213EA5
oklch(41.2% 0.169 266.5)
-
Step 900
900
#213A86
oklch(37.7% 0.131 266.3)
-
Step 950
950
#13234F
oklch(27.1% 0.084 265.9)
#213EA5 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) | #004EA8 | 0.040 |
| Deuteranopia (no green cones) | #0042A3 | 0.019 |
| Tritanopia (no blue cones) | #00596B | 0.133 |
| Achromatopsia (no color) | #484848 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213EA5
#213EA5
oklch(41.2% 0.169 266.5)
- #5F4700
#5F4700
oklch(41.2% 0.084 86.4)
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 #213EA5, closest first.
No curated palette has a color within ΔE 0.04 of #213EA5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.016
- Cobalt #1E488F ΔE 0.045
- Blueberry #464196 ΔE 0.055
- Blue Blue #2242C7 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.066
- Indigo Blue #3A18B1 ΔE 0.068
- Majorelle Blue #3F37C9 ΔE 0.068
- Dusk Blue #26538D ΔE 0.072
Use #213EA5 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.