#1B68DF
Closest named color: Cerulean Blue (#056EEE). oklch(54.4% 0.196 259.7), rgb(27, 104, 223).
Aa
White text reads best on this color (5.13:1).
About this color
#1B68DF is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.196 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.026 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #1B68DF |
| RGB | rgb(27, 104, 223) |
| HSL | hsl(216, 78%, 49%) |
| OKLCH | oklch(54.4% 0.196 259.7) |
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 #1B68DF | 5.13:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #1B68DF | 4.09:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #1B68DF text on white | 5.13:1 | AA | Lc 74.7 | Content text, not long reading |
| #1B68DF text on black | 4.09:1 | AA large text | Lc -27.0 | 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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DAFA
oklch(88.4% 0.049 259.8)
-
Step 300
300
#9FC2FA
oklch(80.9% 0.088 259.7)
-
Step 400
400
#6AA0F8
oklch(70.7% 0.142 259.7)
-
Step 500
500
#4185F4
oklch(63% 0.18 259.8)
-
Step 600
600 (this color)
#1B68DF
oklch(54.4% 0.196 259.7)
-
Step 700
700
#1159C5
oklch(49.1% 0.182 259.6)
-
Step 800
800
#1249A0
oklch(42.6% 0.152 259.9)
-
Step 900
900
#173F7F
oklch(37.8% 0.117 259.6)
-
Step 950
950
#0E254A
oklch(26.9% 0.075 259.5)
#1B68DF 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) | #0077E3 | 0.037 |
| Deuteranopia (no green cones) | #0065DD | 0.013 |
| Tritanopia (no blue cones) | #008699 | 0.151 |
| Achromatopsia (no color) | #6E6E6E | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B68DF
#1B68DF
oklch(54.4% 0.196 259.7)
- #926700
#926700
oklch(54.4% 0.113 79.9)
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 #1B68DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.026
- Royal Blue #4169E1 ΔE 0.028
- Azul #1D5DEC ΔE 0.033
- Neon Blue #4361EE ΔE 0.040
- Bright Blue #0165FC ΔE 0.045
- Warm Blue #4B57DB ΔE 0.050
- Clear Blue #247AFD ΔE 0.063
- Mid Blue #276AB3 ΔE 0.069
Use #1B68DF 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.