#1963AF
Closest named color: Mid Blue (#276AB3). oklch(49.8% 0.14 253.3), rgb(25, 99, 175).
Aa
White text reads best on this color (6.09:1).
About this color
#1963AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.140 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.023 away. White text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #1963AF |
| RGB | rgb(25, 99, 175) |
| HSL | hsl(210, 75%, 39%) |
| OKLCH | oklch(49.8% 0.14 253.3) |
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 #1963AF | 6.09:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #1963AF | 3.44:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #1963AF text on white | 6.09:1 | AA | Lc 79.9 | Fine for body text |
| #1963AF text on black | 3.44:1 | AA large text | Lc -21.9 | 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 700.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A2C4EC
oklch(80.9% 0.068 252.7)
-
Step 400
400
#6FA4E2
oklch(70.7% 0.107 253.1)
-
Step 500
500
#478CDA
oklch(63.1% 0.137 253.2)
-
Step 600
600
#2574C8
oklch(55.6% 0.15 253.5)
-
Step 700
700 (this color)
#1963AF
oklch(49.8% 0.14 253.3)
-
Step 800
800
#16508C
oklch(42.8% 0.115 253)
-
Step 900
900
#1A4370
oklch(37.8% 0.09 253.1)
-
Step 950
950
#102741
oklch(26.9% 0.057 253.1)
#1963AF 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) | #3C69B2 | 0.034 |
| Deuteranopia (no green cones) | #1E5CAE | 0.019 |
| Tritanopia (no blue cones) | #007580 | 0.104 |
| Achromatopsia (no color) | #626262 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1963AF
#1963AF
oklch(49.8% 0.14 253.3)
- #865700
#865700
oklch(49.7% 0.106 73)
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 #1963AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.023
- French Blue #436BAD ΔE 0.044
- Peacock Blue #016795 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.055
- Ocean Blue #03719C ΔE 0.056
- Flat Blue #3C73A8 ΔE 0.059
- Muted Blue #3B719F ΔE 0.060
Use #1963AF 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.