#0045AE
Closest named color: Sapphire (#2138AB). oklch(42.7% 0.178 260.4), rgb(0, 69, 174).
Aa
White text reads best on this color (8.52:1).
About this color
#0045AE is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.178 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.031 away. White text reads best on it, at 8.52:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.46:1 |
| White text | 8.52:1 |
Values
| HEX | #0045AE |
| RGB | rgb(0, 69, 174) |
| HSL | hsl(216, 100%, 34%) |
| OKLCH | oklch(42.7% 0.178 260.4) |
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 #0045AE | 8.52:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #0045AE | 2.46:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #0045AE text on white | 8.52:1 | AAA | Lc 88.4 | Fine for body text |
| #0045AE text on black | 2.46:1 | Fails | Lc -13.8 | Not readable |
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 800.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFF
oklch(93.7% 0.03 260.7)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#679FFF
oklch(70.7% 0.153 260.6)
-
Step 500
500
#3A83FF
oklch(63.1% 0.199 260.3)
-
Step 600
600
#0166F7
oklch(55.7% 0.231 260.4)
-
Step 700
700
#0055D2
oklch(49.1% 0.205 260.4)
-
Step 800
800 (this color)
#0045AE
oklch(42.7% 0.178 260.4)
-
Step 900
900
#0D3C8A
oklch(37.8% 0.139 260.4)
-
Step 950
950
#0A2451
oklch(27.1% 0.089 260.6)
#0045AE 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) | #0054B1 | 0.039 |
| Deuteranopia (no green cones) | #0045AC | 0.003 |
| Tritanopia (no blue cones) | #006072 | 0.135 |
| Achromatopsia (no color) | #4C4C4C | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0045AE
#0045AE
oklch(42.7% 0.178 260.4)
- #684900
#684900
oklch(42.8% 0.089 80.7)
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 #0045AE, closest first.
No curated palette has a color within ΔE 0.04 of #0045AE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.031
- Blue Blue #2242C7 ΔE 0.044
- Cobalt #1E488F ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.069
- Blueberry #464196 ΔE 0.072
- Dusk Blue #26538D ΔE 0.073
- Light Navy #155084 ΔE 0.078
- Indigo Blue #3A18B1 ΔE 0.085
Use #0045AE 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.