#2043AE
Closest named color: Sapphire (#2138AB). oklch(43% 0.175 265.4), rgb(32, 67, 174).
Aa
White text reads best on this color (8.48:1).
About this color
#2043AE is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.175 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.026 away. White text reads best on it, at 8.48:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #2043AE |
| RGB | rgb(32, 67, 174) |
| HSL | hsl(225, 69%, 40%) |
| OKLCH | oklch(43% 0.175 265.4) |
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 #2043AE | 8.48:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #2043AE | 2.47:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #2043AE text on white | 8.48:1 | AAA | Lc 88.5 | Fine for body text |
| #2043AE text on black | 2.47:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#729CFF
oklch(70.6% 0.153 265.4)
-
Step 500
500
#4F7FFF
oklch(63.1% 0.197 265.6)
-
Step 600
600
#3161F6
oklch(55.5% 0.229 265.5)
-
Step 700
700
#254FD6
oklch(49% 0.212 265.4)
-
Step 800
800 (this color)
#2043AE
oklch(43% 0.175 265.4)
-
Step 900
900
#1E3A89
oklch(37.8% 0.136 265.4)
-
Step 950
950
#122350
oklch(27.1% 0.086 265.4)
#2043AE 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) | #0054B2 | 0.042 |
| Deuteranopia (no green cones) | #0046AC | 0.017 |
| Tritanopia (no blue cones) | #005F72 | 0.136 |
| Achromatopsia (no color) | #4D4D4D | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2043AE
#2043AE
oklch(43% 0.175 265.4)
- #664B00
#664B00
oklch(43% 0.088 84.8)
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 #2043AE, closest first.
No curated palette has a color within ΔE 0.04 of #2043AE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.026
- Blue Blue #2242C7 ΔE 0.040
- Cobalt #1E488F ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.057
- Blueberry #464196 ΔE 0.059
- Dusk Blue #26538D ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.075
- Indigo Blue #3A18B1 ΔE 0.075
Use #2043AE 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.