#1B50C8
Closest named color: Blue Blue (#2242C7). oklch(47.7% 0.195 263.1), rgb(27, 80, 200).
Aa
White text reads best on this color (6.93:1).
About this color
#1B50C8 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.195 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.031 away. White text reads best on it, at 6.93:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #1B50C8 |
| RGB | rgb(27, 80, 200) |
| HSL | hsl(222, 76%, 45%) |
| OKLCH | oklch(47.7% 0.195 263.1) |
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 #1B50C8 | 6.93:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #1B50C8 | 3.02:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #1B50C8 text on white | 6.93:1 | AA | Lc 83.2 | Fine for body text |
| #1B50C8 text on black | 3.02:1 | AA large text | Lc -18.7 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A1C1FE
oklch(81% 0.094 263)
-
Step 400
400
#6E9EFE
oklch(70.8% 0.15 263)
-
Step 500
500
#4882FC
oklch(63.2% 0.192 263)
-
Step 600
600
#2C67EB
oklch(55.6% 0.209 263.1)
-
Step 700
700 (this color)
#1B50C8
oklch(47.7% 0.195 263.1)
-
Step 800
800
#1B46A5
oklch(42.6% 0.161 263)
-
Step 900
900
#1B3C83
oklch(37.6% 0.126 263)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#1B50C8 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) | #0062CC | 0.044 |
| Deuteranopia (no green cones) | #0052C6 | 0.011 |
| Tritanopia (no blue cones) | #006F84 | 0.150 |
| Achromatopsia (no color) | #5A5A5A | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B50C8
#1B50C8
oklch(47.7% 0.195 263.1)
- #775700
#775700
oklch(47.8% 0.098 83.7)
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 #1B50C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.031
- Majorelle Blue #3F37C9 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.061
- Azul #1D5DEC ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.069
- Sapphire #2138AB ΔE 0.072
- Blurple #5539CC ΔE 0.074
- Mid Blue #276AB3 ΔE 0.080
Use #1B50C8 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.