#3359B0
Closest named color: Mid Blue (#276AB3). oklch(48.5% 0.145 264), rgb(51, 89, 176).
Aa
White text reads best on this color (6.56:1).
About this color
#3359B0 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.145 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.045 away. White text reads best on it, at 6.56:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.19:1 |
| White text | 6.56:1 |
Values
| HEX | #3359B0 |
| RGB | rgb(51, 89, 176) |
| HSL | hsl(222, 55%, 45%) |
| OKLCH | oklch(48.5% 0.145 264) |
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 #3359B0 | 6.56:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #3359B0 | 3.19:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #3359B0 text on white | 6.56:1 | AA | Lc 82.2 | Fine for body text |
| #3359B0 text on black | 3.19:1 | AA large text | Lc -19.7 | 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 700.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCDAF4
oklch(88.6% 0.039 262.9)
-
Step 300
300
#AAC1EF
oklch(81% 0.07 264.1)
-
Step 400
400
#7D9FE7
oklch(70.7% 0.113 264.4)
-
Step 500
500
#5C86E0
oklch(63.2% 0.144 263.9)
-
Step 600
600
#436DCE
oklch(55.5% 0.157 264.3)
-
Step 700
700 (this color)
#3359B0
oklch(48.5% 0.145 264)
-
Step 800
800
#2C4B90
oklch(42.8% 0.12 263.9)
-
Step 900
900
#273F73
oklch(37.7% 0.094 263.8)
-
Step 950
950
#172543
oklch(26.9% 0.059 264)
#3359B0 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) | #2863B3 | 0.027 |
| Deuteranopia (no green cones) | #0058AE | 0.030 |
| Tritanopia (no blue cones) | #006E7C | 0.118 |
| Achromatopsia (no color) | #5D5D5D | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3359B0
#3359B0
oklch(48.5% 0.145 264)
- #795900
#795900
oklch(48.4% 0.099 84.2)
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 #3359B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.050
- Dusky Blue #475F94 ΔE 0.056
- French Blue #436BAD ΔE 0.056
- Dusk Blue #26538D ΔE 0.060
- Twilight #4E518B ΔE 0.066
- Light Navy Blue #2E5A88 ΔE 0.066
- Peacock Blue #016795 ΔE 0.068
Use #3359B0 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.