#2C519C
Closest named color: Dusk Blue (#26538D). oklch(45% 0.13 262.6), rgb(44, 81, 156).
Aa
White text reads best on this color (7.59:1).
About this color
#2C519C is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.130 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.027 away. White text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #2C519C |
| RGB | rgb(44, 81, 156) |
| HSL | hsl(220, 56%, 39%) |
| OKLCH | oklch(45% 0.13 262.6) |
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 #2C519C | 7.59:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #2C519C | 2.76:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #2C519C text on white | 7.59:1 | AAA | Lc 86.1 | Fine for body text |
| #2C519C text on black | 2.76:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF6
oklch(88.5% 0.042 261.7)
-
Step 300
300
#A7C1F2
oklch(80.9% 0.075 262.9)
-
Step 400
400
#78A0EC
oklch(70.8% 0.12 262.5)
-
Step 500
500
#5586E6
oklch(63.2% 0.154 262.5)
-
Step 600
600
#3B6DD4
oklch(55.6% 0.168 262.7)
-
Step 700
700
#2D5AB8
oklch(49% 0.157 262.8)
-
Step 800
800 (this color)
#2C519C
oklch(45% 0.13 262.6)
-
Step 900
900
#233F77
oklch(37.7% 0.102 262.6)
-
Step 950
950
#152545
oklch(26.9% 0.064 262.8)
#2C519C 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) | #29599F | 0.022 |
| Deuteranopia (no green cones) | #0E4F9A | 0.023 |
| Tritanopia (no blue cones) | #00636F | 0.104 |
| Achromatopsia (no color) | #545454 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C519C
#2C519C
oklch(45% 0.13 262.6)
- #6E4F00
#6E4F00
oklch(44.9% 0.092 82.4)
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 #2C519C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.027
- Cobalt #1E488F ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.040
- Light Navy #155084 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.046
- Blueberry #464196 ΔE 0.049
- Twilight #4E518B ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.053
Use #2C519C 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.