#2957C1
Closest named color: Blue Blue (#2242C7). oklch(48.9% 0.174 263.6), rgb(41, 87, 193).
Aa
White text reads best on this color (6.50:1).
About this color
#2957C1 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.174 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.051 away. White text reads best on it, at 6.50:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.22:1 |
| White text | 6.50:1 |
Values
| HEX | #2957C1 |
| RGB | rgb(41, 87, 193) |
| HSL | hsl(222, 65%, 46%) |
| OKLCH | oklch(48.9% 0.174 263.6) |
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 #2957C1 | 6.50:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #2957C1 | 3.22:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #2957C1 text on white | 6.50:1 | AA | Lc 81.7 | Fine for body text |
| #2957C1 text on black | 3.22:1 | AA large text | Lc -20.2 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A5C1F8
oklch(81% 0.084 263.6)
-
Step 400
400
#749EF4
oklch(70.6% 0.135 263.6)
-
Step 500
500
#5183F0
oklch(63% 0.172 263.7)
-
Step 600
600
#376ADF
oklch(55.6% 0.187 263.7)
-
Step 700
700 (this color)
#2957C1
oklch(48.9% 0.174 263.6)
-
Step 800
800
#23489D
oklch(42.7% 0.145 263.7)
-
Step 900
900
#213E7C
oklch(37.8% 0.111 263.2)
-
Step 950
950
#142549
oklch(27.2% 0.071 263.4)
#2957C1 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) | #0065C5 | 0.036 |
| Deuteranopia (no green cones) | #0057BF | 0.020 |
| Tritanopia (no blue cones) | #007183 | 0.136 |
| Achromatopsia (no color) | #5E5E5E | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2957C1
#2957C1
oklch(48.9% 0.174 263.6)
- #7B5A00
#7B5A00
oklch(48.9% 0.1 83.7)
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 #2957C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.051
- Warm Blue #4B57DB ΔE 0.055
- Mid Blue #276AB3 ΔE 0.058
- Azul #1D5DEC ΔE 0.067
- Majorelle Blue #3F37C9 ΔE 0.070
- Iris #6258C4 ΔE 0.070
- Blue With A Hint Of Purple #533CC6 ΔE 0.072
- Royal Blue #4169E1 ΔE 0.072
Use #2957C1 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.