#0738DF
Closest named color: Vibrant Blue (#0339F8). oklch(45.6% 0.251 264.3), rgb(7, 56, 223).
Aa
White text reads best on this color (7.95:1).
About this color
#0738DF is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.251 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Vibrant Blue (#0339F8), ΔE 0.040 away. White text reads best on it, at 7.95:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.251) |
| Temperature | cool |
| Nearest name | Vibrant Blue (#0339F8) |
| Black text | 2.64:1 |
| White text | 7.95:1 |
Values
| HEX | #0738DF |
| RGB | rgb(7, 56, 223) |
| HSL | hsl(226, 94%, 45%) |
| OKLCH | oklch(45.6% 0.251 264.3) |
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 #0738DF | 7.95:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #0738DF | 2.64:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #0738DF text on white | 7.95:1 | AAA | Lc 86.0 | Fine for body text |
| #0738DF text on black | 2.64:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#255FFF
oklch(55.6% 0.244 264.3)
-
Step 700
700
#0438FF
oklch(49.1% 0.287 264.3)
-
Step 800
800 (this color)
#0738DF
oklch(45.6% 0.251 264.3)
-
Step 900
900
#072DA7
oklch(37.7% 0.197 264.3)
-
Step 950
950
#061D62
oklch(27% 0.125 264.4)
#0738DF 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) | #005BE4 | 0.072 |
| Deuteranopia (no green cones) | #0047DC | 0.027 |
| Tritanopia (no blue cones) | #006A89 | 0.189 |
| Achromatopsia (no color) | #515151 | 0.252 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0738DF
#0738DF
oklch(45.6% 0.251 264.3)
- #6F5100
#6F5100
oklch(45.5% 0.093 83.8)
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 #0738DF, closest first.
No curated palette has a color within ΔE 0.04 of #0738DF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vibrant Blue #0339F8 ΔE 0.040
- Blue Blue #2242C7 ΔE 0.044
- Rich Blue #021BF9 ΔE 0.048
- Vivid Blue #152EFF ΔE 0.049
- Ultramarine Blue #1805DB ΔE 0.052
- Strong Blue #0C06F7 ΔE 0.053
- Pure Blue #0203E2 ΔE 0.053
- Primary Blue #0804F9 ΔE 0.055
Use #0738DF 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.