#3457D2
Closest named color: Warm Blue (#4B57DB). oklch(50.8% 0.194 267), rgb(52, 87, 210).
Aa
White text reads best on this color (6.10:1).
About this color
#3457D2 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.194 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.030 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.194) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.43:1 |
| White text | 6.10:1 |
Values
| HEX | #3457D2 |
| RGB | rgb(52, 87, 210) |
| HSL | hsl(227, 64%, 51%) |
| OKLCH | oklch(50.8% 0.194 267) |
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 #3457D2 | 6.10:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #3457D2 | 3.43:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #3457D2 text on white | 6.10:1 | AA | Lc 79.9 | Fine for body text |
| #3457D2 text on black | 3.43:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FD
oklch(88.6% 0.052 267.4)
-
Step 300
300
#A5BFFE
oklch(80.8% 0.094 267)
-
Step 400
400
#769BFE
oklch(70.6% 0.151 267.1)
-
Step 500
500
#557FFC
oklch(63.2% 0.192 266.9)
-
Step 600
600
#3D64EB
oklch(55.6% 0.208 267)
-
Step 700
700 (this color)
#3457D2
oklch(50.8% 0.194 267)
-
Step 800
800
#2844A5
oklch(42.7% 0.16 267)
-
Step 900
900
#243B83
oklch(37.8% 0.124 266.9)
-
Step 950
950
#15234D
oklch(27% 0.08 267.1)
#3457D2 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) | #006AD6 | 0.048 |
| Deuteranopia (no green cones) | #005BD0 | 0.027 |
| Tritanopia (no blue cones) | #00768C | 0.153 |
| Achromatopsia (no color) | #626262 | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3457D2
#3457D2
oklch(50.8% 0.194 267)
- #7F6000
#7F6000
oklch(50.7% 0.104 86.5)
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 #3457D2, closest first.
No curated palette has a color within ΔE 0.04 of #3457D2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.030
- Azul #1D5DEC ΔE 0.043
- Royal Blue #4169E1 ΔE 0.053
- Neon Blue #4361EE ΔE 0.053
- Blue Blue #2242C7 ΔE 0.057
- Iris #6258C4 ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Cerulean Blue #056EEE ΔE 0.067
Use #3457D2 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.