#2F49A8
Closest named color: Blueberry (#464196). oklch(44.3% 0.156 267.9), rgb(47, 73, 168).
Aa
White text reads best on this color (7.95:1).
About this color
#2F49A8 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.156 and its hue 268°. 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 7.95:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.63:1 |
| White text | 7.95:1 |
Values
| HEX | #2F49A8 |
| RGB | rgb(47, 73, 168) |
| HSL | hsl(227, 56%, 42%) |
| OKLCH | oklch(44.3% 0.156 267.9) |
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 #2F49A8 | 7.95:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #2F49A8 | 2.63:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #2F49A8 text on white | 7.95:1 | AAA | Lc 87.1 | Fine for body text |
| #2F49A8 text on black | 2.63:1 | Fails | Lc -15.0 | 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
#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
#A7BFFC
oklch(80.9% 0.091 267.7)
-
Step 400
400
#799BFB
oklch(70.6% 0.146 267.8)
-
Step 500
500
#597FF8
oklch(63.1% 0.185 267.7)
-
Step 600
600
#4164E7
oklch(55.5% 0.202 267.8)
-
Step 700
700
#3452C9
oklch(49.1% 0.188 267.9)
-
Step 800
800 (this color)
#2F49A8
oklch(44.3% 0.156 267.9)
-
Step 900
900
#263B81
oklch(37.8% 0.121 267.7)
-
Step 950
950
#16234C
oklch(27% 0.078 267.7)
#2F49A8 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) | #0057AB | 0.040 |
| Deuteranopia (no green cones) | #004CA6 | 0.029 |
| Tritanopia (no blue cones) | #006071 | 0.125 |
| Achromatopsia (no color) | #515151 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F49A8
#2F49A8
oklch(44.3% 0.156 267.9)
- #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 #2F49A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.043
- Cobalt #1E488F ΔE 0.045
- Sapphire #2138AB ΔE 0.046
- Blue Blue #2242C7 ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.061
- Majorelle Blue #3F37C9 ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.068
Use #2F49A8 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.