#2D4CB4
Closest named color: Blue Blue (#2242C7). oklch(45.8% 0.169 266.8), rgb(45, 76, 180).
Aa
White text reads best on this color (7.48:1).
About this color
#2D4CB4 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.169 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.040 away. White text reads best on it, at 7.48:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #2D4CB4 |
| RGB | rgb(45, 76, 180) |
| HSL | hsl(226, 60%, 44%) |
| OKLCH | oklch(45.8% 0.169 266.8) |
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 #2D4CB4 | 7.48:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #2D4CB4 | 2.80:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #2D4CB4 text on white | 7.48:1 | AAA | Lc 85.5 | Fine for body text |
| #2D4CB4 text on black | 2.80:1 | Fails | Lc -16.5 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C9D9FE
oklch(88.5% 0.054 266.8)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#759BFF
oklch(70.6% 0.153 266.8)
-
Step 500
500
#537EFF
oklch(63.1% 0.197 266.8)
-
Step 600
600
#3A62F1
oklch(55.6% 0.219 266.9)
-
Step 700
700
#2D50D2
oklch(49.2% 0.204 266.8)
-
Step 800
800 (this color)
#2D4CB4
oklch(45.8% 0.169 266.8)
-
Step 900
900
#223A86
oklch(37.8% 0.131 266.7)
-
Step 950
950
#14234F
oklch(27.1% 0.083 266.7)
#2D4CB4 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) | #005BB8 | 0.040 |
| Deuteranopia (no green cones) | #004FB2 | 0.026 |
| Tritanopia (no blue cones) | #006678 | 0.135 |
| Achromatopsia (no color) | #555555 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4CB4
#2D4CB4
oklch(45.8% 0.169 266.8)
- #6E5300
#6E5300
oklch(45.8% 0.094 86.8)
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 #2D4CB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.040
- Sapphire #2138AB ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.056
- Blueberry #464196 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Cobalt #1E488F ΔE 0.063
- Dusk Blue #26538D ΔE 0.068
- Blurple #5539CC ΔE 0.072
Use #2D4CB4 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.