#3367AF
Closest named color: Mid Blue (#276AB3). oklch(51.5% 0.127 257.1), rgb(51, 103, 175).
Aa
White text reads best on this color (5.67:1).
About this color
#3367AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.127 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.012 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.69:1 |
| White text | 5.67:1 |
Values
| HEX | #3367AF |
| RGB | rgb(51, 103, 175) |
| HSL | hsl(215, 55%, 44%) |
| OKLCH | oklch(51.5% 0.127 257.1) |
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 #3367AF | 5.67:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #3367AF | 3.69:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #3367AF text on white | 5.67:1 | AA | Lc 78.1 | Fine for body text |
| #3367AF text on black | 3.69:1 | AA large text | Lc -23.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDAF0
oklch(88.4% 0.034 257.9)
-
Step 300
300
#A8C3E9
oklch(81% 0.061 256.9)
-
Step 400
400
#79A3DE
oklch(70.8% 0.098 257)
-
Step 500
500
#568AD4
oklch(63% 0.125 257.3)
-
Step 600
600
#3A73C2
oklch(55.7% 0.137 257.1)
-
Step 700
700 (this color)
#3367AF
oklch(51.5% 0.127 257.1)
-
Step 800
800
#264F87
oklch(42.8% 0.104 256.9)
-
Step 900
900
#23426C
oklch(37.7% 0.081 256.5)
-
Step 950
950
#15273F
oklch(27% 0.051 256.1)
#3367AF 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) | #456DB2 | 0.027 |
| Deuteranopia (no green cones) | #3161AE | 0.017 |
| Tritanopia (no blue cones) | #007882 | 0.101 |
| Achromatopsia (no color) | #676767 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3367AF
#3367AF
oklch(51.5% 0.127 257.1)
- #8A5E00
#8A5E00
oklch(51.6% 0.108 77)
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 #3367AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.012
- French Blue #436BAD ΔE 0.021
- Flat Blue #3C73A8 ΔE 0.040
- Muted Blue #3B719F ΔE 0.044
- Dusky Blue #475F94 ΔE 0.046
- Ocean Blue #03719C ΔE 0.051
- Windows Blue #3778BF ΔE 0.051
- Peacock Blue #016795 ΔE 0.052
Use #3367AF 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.