#3149A9
Closest named color: Blueberry (#464196). oklch(44.5% 0.157 268.6), rgb(49, 73, 169).
Aa
White text reads best on this color (7.90:1).
About this color
#3149A9 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.157 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.043 away. White text reads best on it, at 7.90:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #3149A9 |
| RGB | rgb(49, 73, 169) |
| HSL | hsl(228, 55%, 43%) |
| OKLCH | oklch(44.5% 0.157 268.6) |
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 #3149A9 | 7.90:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #3149A9 | 2.65:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #3149A9 text on white | 7.90:1 | AAA | Lc 87.0 | Fine for body text |
| #3149A9 text on black | 2.65:1 | Fails | Lc -15.1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FC
oklch(88.6% 0.051 268.1)
-
Step 300
300
#A8BFFD
oklch(81% 0.092 268.6)
-
Step 400
400
#7B9BFC
oklch(70.8% 0.147 268.7)
-
Step 500
500
#5B7EF9
oklch(63.1% 0.187 268.6)
-
Step 600
600
#4464E8
oklch(55.7% 0.203 268.6)
-
Step 700
700
#3651CA
oklch(49% 0.19 268.7)
-
Step 800
800 (this color)
#3149A9
oklch(44.5% 0.157 268.6)
-
Step 900
900
#273A81
oklch(37.6% 0.122 268.6)
-
Step 950
950
#17234C
oklch(27.1% 0.077 268.6)
#3149A9 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) | #0057AC | 0.041 |
| Deuteranopia (no green cones) | #004CA7 | 0.031 |
| Tritanopia (no blue cones) | #006072 | 0.125 |
| Achromatopsia (no color) | #515151 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3149A9
#3149A9
oklch(44.5% 0.157 268.6)
- #685000
#685000
oklch(44.4% 0.091 88.6)
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 #3149A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.043
- Sapphire #2138AB ΔE 0.047
- Cobalt #1E488F ΔE 0.048
- Blue Blue #2242C7 ΔE 0.053
- Dusk Blue #26538D ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.061
- Majorelle Blue #3F37C9 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.068
Use #3149A9 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.