#33479E
Closest named color: Blueberry (#464196). oklch(43.3% 0.143 269.7), rgb(51, 71, 158).
Aa
White text reads best on this color (8.28:1).
About this color
#33479E is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.143 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.030 away. White text reads best on it, at 8.28:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #33479E |
| RGB | rgb(51, 71, 158) |
| HSL | hsl(229, 51%, 41%) |
| OKLCH | oklch(43.3% 0.143 269.7) |
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 #33479E | 8.28:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #33479E | 2.53:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #33479E text on white | 8.28:1 | AAA | Lc 88.2 | Fine for body text |
| #33479E text on black | 2.53:1 | Fails | Lc -13.9 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ABBFF8
oklch(81% 0.084 269.5)
-
Step 400
400
#809BF4
oklch(70.7% 0.134 269.9)
-
Step 500
500
#6280F0
oklch(63.2% 0.171 269.7)
-
Step 600
600
#4A66DE
oklch(55.6% 0.185 269.5)
-
Step 700
700
#3C54C1
oklch(49.2% 0.172 269.6)
-
Step 800
800 (this color)
#33479E
oklch(43.3% 0.143 269.7)
-
Step 900
900
#2B3B7C
oklch(37.7% 0.112 269.9)
-
Step 950
950
#192349
oklch(27% 0.072 270)
#33479E 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) | #0453A1 | 0.040 |
| Deuteranopia (no green cones) | #004A9C | 0.035 |
| Tritanopia (no blue cones) | #005C6B | 0.119 |
| Achromatopsia (no color) | #4E4E4E | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33479E
#33479E
oklch(43.3% 0.143 269.7)
- #644E00
#644E00
oklch(43.5% 0.089 90)
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 #33479E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.030
- Cobalt #1E488F ΔE 0.034
- Dark Slate Blue #483D8B ΔE 0.046
- Dusk Blue #26538D ΔE 0.047
- Sapphire #2138AB ΔE 0.049
- Light Navy #155084 ΔE 0.058
- Twilight #4E518B ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.064
Use #33479E 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.