#1F6AD5
Closest named color: Royal Blue (#4169E1). oklch(54.2% 0.18 258.5), rgb(31, 106, 213).
Aa
White text reads best on this color (5.14:1).
About this color
#1F6AD5 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.180 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.032 away. White text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #1F6AD5 |
| RGB | rgb(31, 106, 213) |
| HSL | hsl(215, 75%, 48%) |
| OKLCH | oklch(54.2% 0.18 258.5) |
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 #1F6AD5 | 5.14:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #1F6AD5 | 4.08:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #1F6AD5 text on white | 5.14:1 | AA | Lc 74.9 | Content text, not long reading |
| #1F6AD5 text on black | 4.08:1 | AA large text | Lc -26.9 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A1C2F5
oklch(80.8% 0.081 259)
-
Step 400
400
#6DA1F1
oklch(70.7% 0.13 258.7)
-
Step 500
500
#4587EC
oklch(63.1% 0.166 258.8)
-
Step 600
600 (this color)
#1F6AD5
oklch(54.2% 0.18 258.5)
-
Step 700
700
#165CBD
oklch(49.2% 0.167 258.4)
-
Step 800
800
#164B99
oklch(42.6% 0.139 258.8)
-
Step 900
900
#19407A
oklch(37.8% 0.108 258.5)
-
Step 950
950
#102647
oklch(27% 0.068 258.4)
#1F6AD5 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) | #2476D9 | 0.032 |
| Deuteranopia (no green cones) | #0066D3 | 0.016 |
| Tritanopia (no blue cones) | #008495 | 0.137 |
| Achromatopsia (no color) | #6D6D6D | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F6AD5
#1F6AD5
oklch(54.2% 0.18 258.5)
- #926600
#926600
oklch(54.2% 0.113 79)
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 #1F6AD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.032
- Cerulean Blue #056EEE ΔE 0.039
- Azul #1D5DEC ΔE 0.048
- Neon Blue #4361EE ΔE 0.052
- Mid Blue #276AB3 ΔE 0.053
- Warm Blue #4B57DB ΔE 0.055
- Windows Blue #3778BF ΔE 0.058
- Bright Blue #0165FC ΔE 0.061
Use #1F6AD5 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.