#1961DF
Closest named color: Azul (#1D5DEC). oklch(53% 0.205 261), rgb(25, 97, 223).
Aa
White text reads best on this color (5.50:1).
About this color
#1961DF is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.205 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.022 away. White text reads best on it, at 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #1961DF |
| RGB | rgb(25, 97, 223) |
| HSL | hsl(218, 80%, 49%) |
| OKLCH | oklch(53% 0.205 261) |
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 #1961DF | 5.50:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #1961DF | 3.81:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #1961DF text on white | 5.50:1 | AA | Lc 76.7 | Fine for body text |
| #1961DF text on black | 3.81:1 | AA large text | Lc -25.0 | 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
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFC
oklch(88.4% 0.052 261.1)
-
Step 300
300
#9FC2FD
oklch(81% 0.092 260.7)
-
Step 400
400
#6B9FFC
oklch(70.7% 0.148 261.3)
-
Step 500
500
#4284F9
oklch(63.2% 0.188 260.9)
-
Step 600
600 (this color)
#1961DF
oklch(53% 0.205 261)
-
Step 700
700
#1557CA
oklch(49.1% 0.19 261)
-
Step 800
800
#1448A3
oklch(42.7% 0.157 260.9)
-
Step 900
900
#183D81
oklch(37.6% 0.123 261.3)
-
Step 950
950
#0F254C
oklch(27.1% 0.078 260.9)
#1961DF 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) | #0072E3 | 0.042 |
| Deuteranopia (no green cones) | #0060DD | 0.009 |
| Tritanopia (no blue cones) | #008196 | 0.157 |
| Achromatopsia (no color) | #696969 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1961DF
#1961DF
oklch(53% 0.205 261)
- #8C6400
#8C6400
oklch(53.1% 0.11 81.1)
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 #1961DF, closest first.
No curated palette has a color within ΔE 0.04 of #1961DF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.022
- Cerulean Blue #056EEE ΔE 0.038
- Royal Blue #4169E1 ΔE 0.039
- Neon Blue #4361EE ΔE 0.040
- Warm Blue #4B57DB ΔE 0.044
- Bright Blue #0165FC ΔE 0.045
- Electric Blue #0652FF ΔE 0.058
- Mid Blue #276AB3 ΔE 0.075
Use #1961DF 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.