#1957C3
Closest named color: Blue Blue (#2242C7). oklch(48.6% 0.18 260.9), rgb(25, 87, 195).
Aa
White text reads best on this color (6.57:1).
About this color
#1957C3 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.180 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.048 away. White text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #1957C3 |
| RGB | rgb(25, 87, 195) |
| HSL | hsl(218, 77%, 43%) |
| OKLCH | oklch(48.6% 0.18 260.9) |
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 #1957C3 | 6.57:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #1957C3 | 3.19:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #1957C3 text on white | 6.57:1 | AA | Lc 81.9 | Fine for body text |
| #1957C3 text on black | 3.19:1 | AA large text | Lc -20.0 | 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 700.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFB
oklch(93.5% 0.025 261.1)
-
Step 200
200
#C7DAFA
oklch(88.4% 0.049 260.9)
-
Step 300
300
#A1C2FA
oklch(81% 0.087 260.8)
-
Step 400
400
#6DA0F7
oklch(70.8% 0.139 260.5)
-
Step 500
500
#4685F3
oklch(63.1% 0.178 260.7)
-
Step 600
600
#286BE2
oklch(55.6% 0.194 260.9)
-
Step 700
700 (this color)
#1957C3
oklch(48.6% 0.18 260.9)
-
Step 800
800
#18499F
oklch(42.7% 0.15 260.8)
-
Step 900
900
#1A3E7E
oklch(37.6% 0.116 260.9)
-
Step 950
950
#10254A
oklch(27% 0.074 260.8)
#1957C3 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) | #0065C7 | 0.035 |
| Deuteranopia (no green cones) | #0056C1 | 0.010 |
| Tritanopia (no blue cones) | #007284 | 0.138 |
| Achromatopsia (no color) | #5D5D5D | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1957C3
#1957C3
oklch(48.6% 0.18 260.9)
- #7C5800
#7C5800
oklch(48.6% 0.1 81)
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 #1957C3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.048
- Warm Blue #4B57DB ΔE 0.061
- Mid Blue #276AB3 ΔE 0.061
- Azul #1D5DEC ΔE 0.065
- Majorelle Blue #3F37C9 ΔE 0.071
- Royal Blue #4169E1 ΔE 0.076
- Blue With A Hint Of Purple #533CC6 ΔE 0.078
- French Blue #436BAD ΔE 0.080
Use #1957C3 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.