#3376E0
Closest named color: Royal Blue (#4169E1). oklch(58% 0.175 259.4), rgb(51, 118, 224).
Aa
Black text reads best on this color (4.80:1).
About this color
#3376E0 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.175 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.033 away. Black text reads best on it, at 4.80:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.80:1 |
| White text | 4.36:1 |
Values
| HEX | #3376E0 |
| RGB | rgb(51, 118, 224) |
| HSL | hsl(217, 74%, 54%) |
| OKLCH | oklch(58% 0.175 259.4) |
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 #3376E0 | 4.36:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #3376E0 | 4.80:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #3376E0 text on white | 4.36:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #3376E0 text on black | 4.80:1 | AA | Lc -31.9 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF7
oklch(88.4% 0.045 259.9)
-
Step 300
300
#A3C2F4
oklch(80.9% 0.079 259.9)
-
Step 400
400
#70A1EF
oklch(70.7% 0.127 259.4)
-
Step 500
500
#4A87E9
oklch(63.1% 0.161 259.5)
-
Step 600
600 (this color)
#3376E0
oklch(58% 0.175 259.4)
-
Step 700
700
#1E5CBB
oklch(49.2% 0.163 259.3)
-
Step 800
800
#1B4B97
oklch(42.6% 0.135 259.5)
-
Step 900
900
#1C4078
oklch(37.7% 0.104 259.1)
-
Step 950
950
#112646
oklch(27% 0.066 258.6)
#3376E0 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) | #3B81E4 | 0.031 |
| Deuteranopia (no green cones) | #0071DE | 0.027 |
| Tritanopia (no blue cones) | #008FA0 | 0.136 |
| Achromatopsia (no color) | #797979 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3376E0
#3376E0
oklch(58% 0.175 259.4)
- #A07100
#A07100
oklch(58.2% 0.121 79.7)
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 #3376E0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.033
- Cerulean Blue #056EEE ΔE 0.038
- Clear Blue #247AFD ΔE 0.044
- Windows Blue #3778BF ΔE 0.052
- Neon Blue #4361EE ΔE 0.056
- Water Blue #0E87CC ΔE 0.060
- Bright Blue #0165FC ΔE 0.066
- Dark Sky Blue #448EE4 ΔE 0.067
Use #3376E0 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.